204890962680 has 96 divisors (see below), whose sum is σ = 671788643760. Its totient is φ = 54154060800.

The previous prime is 204890962643. The next prime is 204890962681. The reversal of 204890962680 is 86269098402.

It is a happy number.

204890962680 is a `hidden beast` number, since 2 + 0 + 4 + 8 + 9 + 0 + 9 + 626 + 8 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204890962681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2477646 + ... + 2559005.

Almost surely, 2^204890962680 is an apocalyptic number.

204890962680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204890962680 is an abundant number, since it is smaller than the sum of its proper divisors (466897681080).

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

204890962680 is a wasteful number, since it uses less digits than its factorization.

204890962680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036781 (or 5036774 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 204890962680 in words is "two hundred four billion, eight hundred ninety million, nine hundred sixty-two thousand, six hundred eighty".