79361042515 has 4 divisors (see below), whose sum is σ = 95233251024. Its totient is φ = 63488834008.

The previous prime is 79361042483. The next prime is 79361042521. The reversal of 79361042515 is 51524016397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51524016397 = 7 ⋅7360573771.

It is a cyclic number.

It is not a de Polignac number, because 79361042515 - 2⁵ = 79361042483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7936104247 + ... + 7936104256.

It is an arithmetic number, because the mean of its divisors is an integer number (23808312756).

Almost surely, 2^79361042515 is an apocalyptic number.

79361042515 is a deficient number, since it is larger than the sum of its proper divisors (15872208509).

79361042515 is a wasteful number, since it uses less digits than its factorization.

79361042515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15872208508.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 79361042515 in words is "seventy-nine billion, three hundred sixty-one million, forty-two thousand, five hundred fifteen".