20337894988 has 12 divisors (see below), whose sum is σ = 37684923192. Its totient is φ = 9570774080.

The previous prime is 20337894961. The next prime is 20337895001. The reversal of 20337894988 is 88949873302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149543278 + ... + 149543413.

It is an arithmetic number, because the mean of its divisors is an integer number (3140410266).

Almost surely, 2^20337894988 is an apocalyptic number.

It is an amenable number.

20337894988 is a deficient number, since it is larger than the sum of its proper divisors (17347028204).

20337894988 is a wasteful number, since it uses less digits than its factorization.

20337894988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299086712 (or 299086710 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 20337894988 in words is "twenty billion, three hundred thirty-seven million, eight hundred ninety-four thousand, nine hundred eighty-eight".