79438472615 has 32 divisors (see below), whose sum is σ = 98277616896. Its totient is φ = 61616712960.

The previous prime is 79438472611. The next prime is 79438472657. The reversal of 79438472615 is 51627483497.

It is not a de Polignac number, because 79438472615 - 2² = 79438472611 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 (79438472611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12786860 + ... + 12793070.

It is an arithmetic number, because the mean of its divisors is an integer number (3071175528).

Almost surely, 2^79438472615 is an apocalyptic number.

79438472615 is a deficient number, since it is larger than the sum of its proper divisors (18839144281).

79438472615 is a wasteful number, since it uses less digits than its factorization.

79438472615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879.

The product of its digits is 10160640, while the sum is 56.

The spelling of 79438472615 in words is "seventy-nine billion, four hundred thirty-eight million, four hundred seventy-two thousand, six hundred fifteen".