20007073992 has 32 divisors (see below), whose sum is σ = 50098788000. Its totient is φ = 6658210944.

The previous prime is 20007073921. The next prime is 20007073993. The reversal of 20007073992 is 29937070002.

It is a self number, because there is not a number n which added to its sum of digits gives 20007073992.

It is not an unprimeable number, because it can be changed into a prime (20007073993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660742 + ... + 690357.

It is an arithmetic number, because the mean of its divisors is an integer number (1565587125).

Almost surely, 2^20007073992 is an apocalyptic number.

It is an amenable number.

20007073992 is an abundant number, since it is smaller than the sum of its proper divisors (30091714008).

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

20007073992 is a wasteful number, since it uses less digits than its factorization.

20007073992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351725 (or 1351721 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The spelling of 20007073992 in words is "twenty billion, seven million, seventy-three thousand, nine hundred ninety-two".