716718536685 has 24 divisors (see below), whose sum is σ = 1254373421184. Its totient is φ = 378538719840.

The previous prime is 716718536593. The next prime is 716718536689. The reversal of 716718536685 is 586635817617.

716718536685 is a `hidden beast` number, since 7 + 1 + 6 + 7 + 18 + 536 + 6 + 85 = 666.

It is not a de Polignac number, because 716718536685 - 2¹⁰ = 716718535661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716718536689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77311281 + ... + 77320550.

It is an arithmetic number, because the mean of its divisors is an integer number (52265559216).

Almost surely, 2^716718536685 is an apocalyptic number.

It is an amenable number.

716718536685 is a deficient number, since it is larger than the sum of its proper divisors (537654884499).

716718536685 is a wasteful number, since it uses less digits than its factorization.

716718536685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154631945 (or 154631942 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

It can be divided in two parts, 71671 and 8536685, that added together give a square (8608356 = 2934²).

The spelling of 716718536685 in words is "seven hundred sixteen billion, seven hundred eighteen million, five hundred thirty-six thousand, six hundred eighty-five".