204642631706 has 32 divisors (see below), whose sum is σ = 319685425680. Its totient is φ = 98159371776.

The previous prime is 204642631619. The next prime is 204642631729. The reversal of 204642631706 is 607136246402.

It can be written as a sum of positive squares in 8 ways, for example, as 198171877225 + 6470754481 = 445165^2 + 80441^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26514560 + ... + 26522276.

Almost surely, 2^204642631706 is an apocalyptic number.

204642631706 is a deficient number, since it is larger than the sum of its proper divisors (115042793974).

204642631706 is a wasteful number, since it uses less digits than its factorization.

204642631706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 204642631706 in words is "two hundred four billion, six hundred forty-two million, six hundred thirty-one thousand, seven hundred six".