20314931718 has 16 divisors (see below), whose sum is σ = 41940504576. Its totient is φ = 6553203720.

The previous prime is 20314931671. The next prime is 20314931719. The reversal of 20314931718 is 81713941302.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314931719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54609846 + ... + 54610217.

It is an arithmetic number, because the mean of its divisors is an integer number (2621281536).

Almost surely, 2^20314931718 is an apocalyptic number.

20314931718 is an abundant number, since it is smaller than the sum of its proper divisors (21625572858).

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

20314931718 is a wasteful number, since it uses less digits than its factorization.

20314931718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109220099.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 20314931718 in words is "twenty billion, three hundred fourteen million, nine hundred thirty-one thousand, seven hundred eighteen".