23217861864 has 32 divisors (see below), whose sum is σ = 58082220000. Its totient is φ = 7734278592.

The previous prime is 23217861853. The next prime is 23217861881. The reversal of 23217861864 is 46816871232.

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 7 ways as a sum of consecutive naturals, for example, 275094 + ... + 349445.

It is an arithmetic number, because the mean of its divisors is an integer number (1815069375).

Almost surely, 2^23217861864 is an apocalyptic number.

23217861864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23217861864 is an abundant number, since it is smaller than the sum of its proper divisors (34864358136).

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

23217861864 is a wasteful number, since it uses less digits than its factorization.

23217861864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626097 (or 626093 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The spelling of 23217861864 in words is "twenty-three billion, two hundred seventeen million, eight hundred sixty-one thousand, eight hundred sixty-four".