716561427172 has 6 divisors (see below), whose sum is σ = 1253982497558. Its totient is φ = 358280713584.

The previous prime is 716561427151. The next prime is 716561427173. The reversal of 716561427172 is 271724165617.

It can be written as a sum of positive squares in only one way, i.e., 715878441216 + 682985956 = 846096^2 + 26134^2 .

It is not an unprimeable number, because it can be changed into a prime (716561427173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89570178393 + ... + 89570178400.

Almost surely, 2^716561427172 is an apocalyptic number.

It is an amenable number.

716561427172 is a deficient number, since it is larger than the sum of its proper divisors (537421070386).

716561427172 is a wasteful number, since it uses less digits than its factorization.

716561427172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179140356797 (or 179140356795 counting only the distinct ones).

The product of its digits is 987840, while the sum is 49.

The spelling of 716561427172 in words is "seven hundred sixteen billion, five hundred sixty-one million, four hundred twenty-seven thousand, one hundred seventy-two".