23256513207 has 40 divisors (see below), whose sum is σ = 36033900672. Its totient is φ = 14935752000.

The previous prime is 23256513191. The next prime is 23256513253. The reversal of 23256513207 is 70231565232.

23256513207 is a `hidden beast` number, since 2 + 325 + 6 + 5 + 1 + 320 + 7 = 666.

It is not a de Polignac number, because 23256513207 - 2⁴ = 23256513191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23256513307) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 264282 + ... + 341112.

Almost surely, 2^23256513207 is an apocalyptic number.

23256513207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23256513207 is a deficient number, since it is larger than the sum of its proper divisors (12777387465).

23256513207 is a wasteful number, since it uses less digits than its factorization.

23256513207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76981 (or 76972 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 23256513207 in words is "twenty-three billion, two hundred fifty-six million, five hundred thirteen thousand, two hundred seven".