23929917524 has 6 divisors (see below), whose sum is σ = 41877355674. Its totient is φ = 11964958760.

The previous prime is 23929917503. The next prime is 23929917533. The reversal of 23929917524 is 42571992932.

It can be written as a sum of positive squares in only one way, i.e., 19149577924 + 4780339600 = 138382^2 + 69140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2991239687 + ... + 2991239694.

It is an arithmetic number, because the mean of its divisors is an integer number (6979559279).

Almost surely, 2^23929917524 is an apocalyptic number.

It is an amenable number.

23929917524 is a deficient number, since it is larger than the sum of its proper divisors (17947438150).

23929917524 is a wasteful number, since it uses less digits than its factorization.

23929917524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982479385 (or 5982479383 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The spelling of 23929917524 in words is "twenty-three billion, nine hundred twenty-nine million, nine hundred seventeen thousand, five hundred twenty-four".