23781862664 has 24 divisors (see below), whose sum is σ = 51871155390. Its totient is φ = 10192226688.

The previous prime is 23781862651. The next prime is 23781862679. The reversal of 23781862664 is 46626818732.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20491922500 + 3289940164 = 143150^2 + 57358^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30333617 + ... + 30334400.

Almost surely, 2^23781862664 is an apocalyptic number.

It is an amenable number.

23781862664 is an abundant number, since it is smaller than the sum of its proper divisors (28089292726).

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

23781862664 is a wasteful number, since it uses less digits than its factorization.

23781862664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60668037 (or 60668026 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The spelling of 23781862664 in words is "twenty-three billion, seven hundred eighty-one million, eight hundred sixty-two thousand, six hundred sixty-four".