712664740631761 has 4 divisors (see below), whose sum is σ = 713038450513392. Its totient is φ = 712291030750132.

The previous prime is 712664740631759. The next prime is 712664740631797. The reversal of 712664740631761 is 167136047466217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 712664740631761 - 2¹ = 712664740631759 is a prime.

It is a super-2 number, since 2×712664740631761² (a number of 31 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 712664740631761.

It is not an unprimeable number, because it can be changed into a prime (712664740631861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186854937955 + ... + 186854941768.

It is an arithmetic number, because the mean of its divisors is an integer number (178259612628348).

Almost surely, 2^{712664740631761} is an apocalyptic number.

It is an amenable number.

712664740631761 is a deficient number, since it is larger than the sum of its proper divisors (373709881631).

712664740631761 is a wasteful number, since it uses less digits than its factorization.

712664740631761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373709881630.

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 712664740631761 in words is "seven hundred twelve trillion, six hundred sixty-four billion, seven hundred forty million, six hundred thirty-one thousand, seven hundred sixty-one".