23231904787 has 16 divisors (see below), whose sum is σ = 28613036032. Its totient is φ = 18368480160.

The previous prime is 23231904779. The next prime is 23231904793. The reversal of 23231904787 is 78740913232.

It is a cyclic number.

It is not a de Polignac number, because 23231904787 - 2³ = 23231904779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23231904757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43462 + ... + 219892.

It is an arithmetic number, because the mean of its divisors is an integer number (1788314752).

Almost surely, 2^23231904787 is an apocalyptic number.

23231904787 is a deficient number, since it is larger than the sum of its proper divisors (5381131245).

23231904787 is a wasteful number, since it uses less digits than its factorization.

23231904787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177898.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 23231904787 in words is "twenty-three billion, two hundred thirty-one million, nine hundred four thousand, seven hundred eighty-seven".