265947638968 has 16 divisors (see below), whose sum is σ = 543983807160. Its totient is φ = 120885290400.

The previous prime is 265947638933. The next prime is 265947638987. The reversal of 265947638968 is 869836749562.

It is a self number, because there is not a number n which added to its sum of digits gives 265947638968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511066043 + ... + 1511066218.

Almost surely, 2^265947638968 is an apocalyptic number.

It is an amenable number.

265947638968 is an abundant number, since it is smaller than the sum of its proper divisors (278036168192).

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

265947638968 is a wasteful number, since it uses less digits than its factorization.

265947638968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022132278 (or 3022132274 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 73.

The spelling of 265947638968 in words is "two hundred sixty-five billion, nine hundred forty-seven million, six hundred thirty-eight thousand, nine hundred sixty-eight".