20372314518 has 24 divisors (see below), whose sum is σ = 44273381256. Its totient is φ = 6770253600.

The previous prime is 20372314513. The next prime is 20372314519. The reversal of 20372314518 is 81541327302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372314513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1703703 + ... + 1715618.

It is an arithmetic number, because the mean of its divisors is an integer number (1844724219).

Almost surely, 2^20372314518 is an apocalyptic number.

20372314518 is an abundant number, since it is smaller than the sum of its proper divisors (23901066738).

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

20372314518 is a wasteful number, since it uses less digits than its factorization.

20372314518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419660 (or 3419657 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 20372314518 in words is "twenty billion, three hundred seventy-two million, three hundred fourteen thousand, five hundred eighteen".