6989253480 has 384 divisors, whose sum is σ = 25945920000. Its totient is φ = 1678060800.

The previous prime is 6989253473. The next prime is 6989253529. The reversal of 6989253480 is 843529896.

6989253480 is a `hidden beast` number, since 69 + 89 + 25 + 3 + 480 = 666.

It is a super-2 number, since 2×6989253480² = 97699328415384220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14006271 + ... + 14006769.

It is an arithmetic number, because the mean of its divisors is an integer number (67567500).

Almost surely, 2^6989253480 is an apocalyptic number.

6989253480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6989253480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12972960000).

6989253480 is an abundant number, since it is smaller than the sum of its proper divisors (18956666520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6989253480 is a wasteful number, since it uses less digits than its factorization.

6989253480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 6989253480 is about 83601.7552447316. The cubic root of 6989253480 is about 1911.9517598107.

The spelling of 6989253480 in words is "six billion, nine hundred eighty-nine million, two hundred fifty-three thousand, four hundred eighty".