23989787936 has 48 divisors (see below), whose sum is σ = 48254459904. Its totient is φ = 11737281024.

The previous prime is 23989787903. The next prime is 23989787947. The reversal of 23989787936 is 63978798932.

It is a super-2 number, since 2×23989787936² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23989787936.

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 7 ways as a sum of consecutive naturals, for example, 256241 + ... + 337103.

It is an arithmetic number, because the mean of its divisors is an integer number (1005301248).

Almost surely, 2^23989787936 is an apocalyptic number.

It is an amenable number.

23989787936 is an abundant number, since it is smaller than the sum of its proper divisors (24264671968).

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

23989787936 is a wasteful number, since it uses less digits than its factorization.

23989787936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81073 (or 81065 counting only the distinct ones).

The product of its digits is 246903552, while the sum is 71.

The spelling of 23989787936 in words is "twenty-three billion, nine hundred eighty-nine million, seven hundred eighty-seven thousand, nine hundred thirty-six".