20318758828 has 24 divisors (see below), whose sum is σ = 36531595184. Its totient is φ = 9881352000.

The previous prime is 20318758793. The next prime is 20318758849. The reversal of 20318758828 is 82885781302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430603 + ... + 475453.

Almost surely, 2^20318758828 is an apocalyptic number.

It is an amenable number.

20318758828 is a deficient number, since it is larger than the sum of its proper divisors (16212836356).

20318758828 is a wasteful number, since it uses less digits than its factorization.

20318758828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47953 (or 47951 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 20318758828 in words is "twenty billion, three hundred eighteen million, seven hundred fifty-eight thousand, eight hundred twenty-eight".