6712680391 has 4 divisors (see below), whose sum is σ = 6839334792. Its totient is φ = 6586025992.

The previous prime is 6712680349. The next prime is 6712680409. The reversal of 6712680391 is 1930862176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6712680391 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 (6712680301) 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, 63327121 + ... + 63327226.

It is an arithmetic number, because the mean of its divisors is an integer number (1709833698).

Almost surely, 2^6712680391 is an apocalyptic number.

6712680391 is a deficient number, since it is larger than the sum of its proper divisors (126654401).

6712680391 is a wasteful number, since it uses less digits than its factorization.

6712680391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126654400.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 6712680391 is about 81930.9489204171. The cubic root of 6712680391 is about 1886.3921909257.

The spelling of 6712680391 in words is "six billion, seven hundred twelve million, six hundred eighty thousand, three hundred ninety-one".