20047856359492 has 48 divisors (see below), whose sum is σ = 38208799681920. Its totient is φ = 9148466181888.

The previous prime is 20047856359483. The next prime is 20047856359511. The reversal of 20047856359492 is 29495365874002.

It is a super-2 number, since 2×20047856359492² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

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, 113033593 + ... + 113210815.

It is an arithmetic number, because the mean of its divisors is an integer number (796016660040).

Almost surely, 2^{20047856359492} is an apocalyptic number.

It is an amenable number.

20047856359492 is a deficient number, since it is larger than the sum of its proper divisors (18160943322428).

20047856359492 is a wasteful number, since it uses less digits than its factorization.

20047856359492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201772 (or 201770 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 64.

The spelling of 20047856359492 in words is "twenty trillion, forty-seven billion, eight hundred fifty-six million, three hundred fifty-nine thousand, four hundred ninety-two".