20372519688 has 32 divisors (see below), whose sum is σ = 50934886560. Its totient is φ = 6790361600.

The previous prime is 20372519669. The next prime is 20372519719. The reversal of 20372519688 is 88691527302.

It is a self number, because there is not a number n which added to its sum of digits gives 20372519688.

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, 538531 + ... + 575117.

It is an arithmetic number, because the mean of its divisors is an integer number (1591715205).

Almost surely, 2^20372519688 is an apocalyptic number.

It is an amenable number.

20372519688 is an abundant number, since it is smaller than the sum of its proper divisors (30562366872).

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

20372519688 is a wasteful number, since it uses less digits than its factorization.

20372519688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59797 (or 59793 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 20372519688 in words is "twenty billion, three hundred seventy-two million, five hundred nineteen thousand, six hundred eighty-eight".