209203720094992 has 60 divisors (see below), whose sum is σ = 471511376960976. Its totient is φ = 89658265166400.

The previous prime is 209203720094987. The next prime is 209203720095043. The reversal of 209203720094992 is 299490027302902.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176948403 + ... + 178126765.

Almost surely, 2^{209203720094992} is an apocalyptic number.

It is an amenable number.

209203720094992 is an abundant number, since it is smaller than the sum of its proper divisors (262307656865984).

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

209203720094992 is a wasteful number, since it uses less digits than its factorization.

209203720094992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404836 (or 1404823 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 209203720094992 in words is "two hundred nine trillion, two hundred three billion, seven hundred twenty million, ninety-four thousand, nine hundred ninety-two".