6991713264265 has 16 divisors (see below), whose sum is σ = 8395097452416. Its totient is φ = 5590010160000.

The previous prime is 6991713264257. The next prime is 6991713264271. The reversal of 6991713264265 is 5624623171996.

It is a happy number.

It is not a de Polignac number, because 6991713264265 - 2³ = 6991713264257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122052580 + ... + 122109850.

It is an arithmetic number, because the mean of its divisors is an integer number (524693590776).

Almost surely, 2^{6991713264265} is an apocalyptic number.

It is an amenable number.

6991713264265 is a deficient number, since it is larger than the sum of its proper divisors (1403384188151).

6991713264265 is a wasteful number, since it uses less digits than its factorization.

6991713264265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71520.

The product of its digits is 29393280, while the sum is 61.

The spelling of 6991713264265 in words is "six trillion, nine hundred ninety-one billion, seven hundred thirteen million, two hundred sixty-four thousand, two hundred sixty-five".