2865618972 has 60 divisors (see below), whose sum is σ = 7499548056. Its totient is φ = 954154080.

The previous prime is 2865618971. The next prime is 2865618979. The reversal of 2865618972 is 2798165682.

2865618972 is a `hidden beast` number, since 2 + 8 + 6 + 561 + 8 + 9 + 72 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865618971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 323847 + ... + 332577.

Almost surely, 2^2865618972 is an apocalyptic number.

It is an amenable number.

2865618972 is an abundant number, since it is smaller than the sum of its proper divisors (4633929084).

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

2865618972 is a wasteful number, since it uses less digits than its factorization.

2865618972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760 (or 9749 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 2865618972 is about 53531.4764601164. The cubic root of 2865618972 is about 1420.3852310630.

The spelling of 2865618972 in words is "two billion, eight hundred sixty-five million, six hundred eighteen thousand, nine hundred seventy-two".