265009764051 has 24 divisors (see below), whose sum is σ = 386849606000. Its totient is φ = 174804962112.

The previous prime is 265009764049. The next prime is 265009764121. The reversal of 265009764051 is 150467900562.

265009764051 is a `hidden beast` number, since 2 + 6 + 500 + 97 + 6 + 4 + 0 + 51 = 666.

It is not a de Polignac number, because 265009764051 - 2¹ = 265009764049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 265009763988 and 265009764006.

It is not an unprimeable number, because it can be changed into a prime (265009764011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505020 + ... + 886038.

Almost surely, 2^265009764051 is an apocalyptic number.

265009764051 is a deficient number, since it is larger than the sum of its proper divisors (121839841949).

265009764051 is a wasteful number, since it uses less digits than its factorization.

265009764051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381843 (or 381840 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 265009764051 in words is "two hundred sixty-five billion, nine million, seven hundred sixty-four thousand, fifty-one".