23253920739 has 36 divisors (see below), whose sum is σ = 39459850560. Its totient is φ = 13156365600.

The previous prime is 23253920693. The next prime is 23253920743. The reversal of 23253920739 is 93702935232.

23253920739 is a `hidden beast` number, since 23 + 2 + 539 + 20 + 73 + 9 = 666.

It is not a de Polignac number, because 23253920739 - 2²⁸ = 22985485283 is a prime.

It is a super-2 number, since 2×23253920739² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23253920694 and 23253920703.

It is not an unprimeable number, because it can be changed into a prime (23253922739) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 216499 + ... + 305580.

It is an arithmetic number, because the mean of its divisors is an integer number (1096106960).

Almost surely, 2^23253920739 is an apocalyptic number.

23253920739 is a deficient number, since it is larger than the sum of its proper divisors (16205929821).

23253920739 is a wasteful number, since it uses less digits than its factorization.

23253920739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522200 (or 522190 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The spelling of 23253920739 in words is "twenty-three billion, two hundred fifty-three million, nine hundred twenty thousand, seven hundred thirty-nine".