25680538923 has 16 divisors (see below), whose sum is σ = 36934418976. Its totient is φ = 15777780480.

The previous prime is 25680538883. The next prime is 25680538937. The reversal of 25680538923 is 32983508652.

It is not a de Polignac number, because 25680538923 - 2²² = 25676344619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25680538523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509548 + ... + 557673.

It is an arithmetic number, because the mean of its divisors is an integer number (2308401186).

Almost surely, 2^25680538923 is an apocalyptic number.

25680538923 is a deficient number, since it is larger than the sum of its proper divisors (11253880053).

25680538923 is a wasteful number, since it uses less digits than its factorization.

25680538923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067854.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 25680538923 in words is "twenty-five billion, six hundred eighty million, five hundred thirty-eight thousand, nine hundred twenty-three".