204360986361 has 32 divisors (see below), whose sum is σ = 314153199360. Its totient is φ = 115752381696.

The previous prime is 204360986359. The next prime is 204360986377. The reversal of 204360986361 is 163689063402.

It is not a de Polignac number, because 204360986361 - 2¹ = 204360986359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204360986361.

It is not an unprimeable number, because it can be changed into a prime (204360986261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021035 + ... + 1204671.

It is an arithmetic number, because the mean of its divisors is an integer number (9817287480).

Almost surely, 2^204360986361 is an apocalyptic number.

204360986361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204360986361 is a deficient number, since it is larger than the sum of its proper divisors (109792212999).

204360986361 is a wasteful number, since it uses less digits than its factorization.

204360986361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184113.

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 204360986361 in words is "two hundred four billion, three hundred sixty million, nine hundred eighty-six thousand, three hundred sixty-one".