7689912731 has 8 divisors (see below), whose sum is σ = 8355763200. Its totient is φ = 7050174120.

The previous prime is 7689912691. The next prime is 7689912743. The reversal of 7689912731 is 1372199867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7689912731 is a prime.

It is a super-2 number, since 2×7689912731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7689912781) 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 7 ways as a sum of consecutive naturals, for example, 6527351 + ... + 6528528.

It is an arithmetic number, because the mean of its divisors is an integer number (1044470400).

Almost surely, 2^7689912731 is an apocalyptic number.

7689912731 is a deficient number, since it is larger than the sum of its proper divisors (665850469).

7689912731 is a wasteful number, since it uses less digits than its factorization.

7689912731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13055929.

The product of its digits is 1143072, while the sum is 53.

The square root of 7689912731 is about 87692.1474876742. The cubic root of 7689912731 is about 1973.8181451027.

The spelling of 7689912731 in words is "seven billion, six hundred eighty-nine million, nine hundred twelve thousand, seven hundred thirty-one".