713720634661 has 4 divisors (see below), whose sum is σ = 713872397952. Its totient is φ = 713568871372.

The previous prime is 713720634647. The next prime is 713720634673. The reversal of 713720634661 is 166436027317.

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 713720634661 - 2²³ = 713712246053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713780634661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75874591 + ... + 75883996.

It is an arithmetic number, because the mean of its divisors is an integer number (178468099488).

Almost surely, 2^713720634661 is an apocalyptic number.

It is an amenable number.

713720634661 is a deficient number, since it is larger than the sum of its proper divisors (151763291).

713720634661 is a wasteful number, since it uses less digits than its factorization.

713720634661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151763290.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 713720634661 in words is "seven hundred thirteen billion, seven hundred twenty million, six hundred thirty-four thousand, six hundred sixty-one".