6247557426 has 96 divisors (see below), whose sum is σ = 14818132224. Its totient is φ = 1748032000.

The previous prime is 6247557397. The next prime is 6247557427.

6247557426 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6247557427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 649351 + ... + 658901.

It is an arithmetic number, because the mean of its divisors is an integer number (154355544).

Almost surely, 2^6247557426 is an apocalyptic number.

6247557426 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6247557426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7409066112).

6247557426 is an abundant number, since it is smaller than the sum of its proper divisors (8570574798).

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

6247557426 is a wasteful number, since it uses less digits than its factorization.

6247557426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648 (or 9637 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 48.

The square root of 6247557426 is about 79041.4918001931. The cubic root of 6247557426 is about 1841.7757575322.

The spelling of 6247557426 in words is "six billion, two hundred forty-seven million, five hundred fifty-seven thousand, four hundred twenty-six".