7912679813 has 8 divisors (see below), whose sum is σ = 7995357696. Its totient is φ = 7830432000.

The previous prime is 7912679809. The next prime is 7912679839. The reversal of 7912679813 is 3189762197.

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

It is a cyclic number.

It is not a de Polignac number, because 7912679813 - 2² = 7912679809 is a prime.

It is a super-2 number, since 2×7912679813² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912679113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70463 + ... + 144188.

It is an arithmetic number, because the mean of its divisors is an integer number (999419712).

Almost surely, 2^7912679813 is an apocalyptic number.

It is an amenable number.

7912679813 is a deficient number, since it is larger than the sum of its proper divisors (82677883).

7912679813 is a wasteful number, since it uses less digits than its factorization.

7912679813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215035.

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

The square root of 7912679813 is about 88953.2450953870. The cubic root of 7912679813 is about 1992.6966809780.

The spelling of 7912679813 in words is "seven billion, nine hundred twelve million, six hundred seventy-nine thousand, eight hundred thirteen".