79930535815 has 8 divisors (see below), whose sum is σ = 103294846368. Its totient is φ = 59025626400.

The previous prime is 79930535777. The next prime is 79930535827. The reversal of 79930535815 is 51853503997.

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

It is not a de Polignac number, because 79930535815 - 2²¹ = 79928438663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614850211 + ... + 614850340.

It is an arithmetic number, because the mean of its divisors is an integer number (12911855796).

Almost surely, 2^79930535815 is an apocalyptic number.

79930535815 is a deficient number, since it is larger than the sum of its proper divisors (23364310553).

79930535815 is a wasteful number, since it uses less digits than its factorization.

79930535815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229700569.

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 79930535815 in words is "seventy-nine billion, nine hundred thirty million, five hundred thirty-five thousand, eight hundred fifteen".