23131964634 has 32 divisors (see below), whose sum is σ = 49199296320. Its totient is φ = 7225389312.

The previous prime is 23131964591. The next prime is 23131964659. The reversal of 23131964634 is 43646913132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471804 + ... + 518519.

It is an arithmetic number, because the mean of its divisors is an integer number (1537478010).

Almost surely, 2^23131964634 is an apocalyptic number.

23131964634 is an abundant number, since it is smaller than the sum of its proper divisors (26067331686).

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

23131964634 is a wasteful number, since it uses less digits than its factorization.

23131964634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990574.

The product of its digits is 279936, while the sum is 42.

The spelling of 23131964634 in words is "twenty-three billion, one hundred thirty-one million, nine hundred sixty-four thousand, six hundred thirty-four".