204058505631 has 16 divisors (see below), whose sum is σ = 287586295040. Its totient is φ = 128344279680.

The previous prime is 204058505627. The next prime is 204058505633. The reversal of 204058505631 is 136505850402.

It is not a de Polignac number, because 204058505631 - 2² = 204058505627 is a prime.

It is a super-2 number, since 2×204058505631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204058505631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204058505633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7413595 + ... + 7441068.

It is an arithmetic number, because the mean of its divisors is an integer number (17974143440).

Almost surely, 2^204058505631 is an apocalyptic number.

204058505631 is a deficient number, since it is larger than the sum of its proper divisors (83527789409).

204058505631 is a wasteful number, since it uses less digits than its factorization.

204058505631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14854926.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 204058505631 in words is "two hundred four billion, fifty-eight million, five hundred five thousand, six hundred thirty-one".