20457415814 has 32 divisors (see below), whose sum is σ = 34088086656. Its totient is φ = 9130280320.

The previous prime is 20457415793. The next prime is 20457415819. The reversal of 20457415814 is 41851475402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20457415819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227549 + ... + 304455.

It is an arithmetic number, because the mean of its divisors is an integer number (1065252708).

Almost surely, 2^20457415814 is an apocalyptic number.

20457415814 is a deficient number, since it is larger than the sum of its proper divisors (13630670842).

20457415814 is a wasteful number, since it uses less digits than its factorization.

20457415814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77140.

The product of its (nonzero) digits is 179200, while the sum is 41.

The spelling of 20457415814 in words is "twenty billion, four hundred fifty-seven million, four hundred fifteen thousand, eight hundred fourteen".