23500686920 has 16 divisors (see below), whose sum is σ = 52876545660. Its totient is φ = 9400274752.

The previous prime is 23500686901. The next prime is 23500686941. The reversal of 23500686920 is 2968600532.

It can be written as a sum of positive squares in 2 ways, for example, as 22878982564 + 621704356 = 151258^2 + 24934^2 .

It is a super-4 number, since 4×23500686920⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293758547 + ... + 293758626.

Almost surely, 2^23500686920 is an apocalyptic number.

23500686920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23500686920 is an abundant number, since it is smaller than the sum of its proper divisors (29375858740).

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

23500686920 is a wasteful number, since it uses less digits than its factorization.

23500686920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587517184 (or 587517180 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 23500686920 in words is "twenty-three billion, five hundred million, six hundred eighty-six thousand, nine hundred twenty".