23137720265 has 32 divisors (see below), whose sum is σ = 31017945600. Its totient is φ = 16427473920.

The previous prime is 23137720259. The next prime is 23137720321. The reversal of 23137720265 is 56202773132.

It is a happy number.

It is not a de Polignac number, because 23137720265 - 2⁸ = 23137720009 is a prime.

It is a super-2 number, since 2×23137720265² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356789 + ... + 416621.

It is an arithmetic number, because the mean of its divisors is an integer number (969310800).

Almost surely, 2^23137720265 is an apocalyptic number.

It is an amenable number.

23137720265 is a deficient number, since it is larger than the sum of its proper divisors (7880225335).

23137720265 is a wasteful number, since it uses less digits than its factorization.

23137720265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60017.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 23137720265 in words is "twenty-three billion, one hundred thirty-seven million, seven hundred twenty thousand, two hundred sixty-five".