20213798885718 has 32 divisors (see below), whose sum is σ = 41452741862496. Its totient is φ = 6568695115008.

The previous prime is 20213798885659. The next prime is 20213798885729. The reversal of 20213798885718 is 81758889731202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202387671 + ... + 202487522.

It is an arithmetic number, because the mean of its divisors is an integer number (1295398183203).

Almost surely, 2^{20213798885718} is an apocalyptic number.

20213798885718 is an abundant number, since it is smaller than the sum of its proper divisors (21238942976778).

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

20213798885718 is a wasteful number, since it uses less digits than its factorization.

20213798885718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404875408.

The product of its (nonzero) digits is 108380160, while the sum is 69.

The spelling of 20213798885718 in words is "twenty trillion, two hundred thirteen billion, seven hundred ninety-eight million, eight hundred eighty-five thousand, seven hundred eighteen".