712559730906 has 12 divisors (see below), whose sum is σ = 1543879417002. Its totient is φ = 237519910296.

The previous prime is 712559730881. The next prime is 712559730923. The reversal of 712559730906 is 609037955217.

712559730906 is a `hidden beast` number, since 7 + 12 + 5 + 597 + 30 + 9 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 712182400281 + 377330625 = 843909^2 + 19425^2 .

It is a super-2 number, since 2×712559730906² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19793325841 + ... + 19793325876.

Almost surely, 2^712559730906 is an apocalyptic number.

712559730906 is an abundant number, since it is smaller than the sum of its proper divisors (831319686096).

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

712559730906 is a wasteful number, since it uses less digits than its factorization.

712559730906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39586651725 (or 39586651722 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 54.

The spelling of 712559730906 in words is "seven hundred twelve billion, five hundred fifty-nine million, seven hundred thirty thousand, nine hundred six".