204645423230634 has 16 divisors (see below), whose sum is σ = 417013315263072. Its totient is φ = 66928062943248.

The previous prime is 204645423230603. The next prime is 204645423230659. The reversal of 204645423230634 is 436032324546402.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321769533064 + ... + 321769533699.

It is an arithmetic number, because the mean of its divisors is an integer number (26063332203942).

Almost surely, 2^{204645423230634} is an apocalyptic number.

204645423230634 is an abundant number, since it is smaller than the sum of its proper divisors (212367892032438).

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

204645423230634 is a wasteful number, since it uses less digits than its factorization.

204645423230634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643539066821.

The product of its (nonzero) digits is 9953280, while the sum is 48.

The spelling of 204645423230634 in words is "two hundred four trillion, six hundred forty-five billion, four hundred twenty-three million, two hundred thirty thousand, six hundred thirty-four".