204152452634 has 64 divisors (see below), whose sum is σ = 361641853440. Its totient is φ = 85524741120.

The previous prime is 204152452631. The next prime is 204152452681. The reversal of 204152452634 is 436254251402.

It is a super-2 number, since 2×204152452634² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204152452631) 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, 11668457 + ... + 11685939.

It is an arithmetic number, because the mean of its divisors is an integer number (5650653960).

Almost surely, 2^204152452634 is an apocalyptic number.

204152452634 is a deficient number, since it is larger than the sum of its proper divisors (157489400806).

204152452634 is a wasteful number, since it uses less digits than its factorization.

204152452634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 204152452634 in words is "two hundred four billion, one hundred fifty-two million, four hundred fifty-two thousand, six hundred thirty-four".