23157009774 has 24 divisors (see below), whose sum is σ = 50808632160. Its totient is φ = 7621293888.

The previous prime is 23157009751. The next prime is 23157009787. The reversal of 23157009774 is 47790075132.

23157009774 is a `hidden beast` number, since 2 + 3 + 1 + 570 + 0 + 9 + 7 + 74 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 8140987 + ... + 8143830.

It is an arithmetic number, because the mean of its divisors is an integer number (2117026340).

Almost surely, 2^23157009774 is an apocalyptic number.

23157009774 is an abundant number, since it is smaller than the sum of its proper divisors (27651622386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23157009774 is a wasteful number, since it uses less digits than its factorization.

23157009774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16284904 (or 16284901 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 23157009774 in words is "twenty-three billion, one hundred fifty-seven million, nine thousand, seven hundred seventy-four".