79915118401 has 8 divisors (see below), whose sum is σ = 80435191104. Its totient is φ = 79395186000.

The previous prime is 79915118363. The next prime is 79915118411. The reversal of 79915118401 is 10481151997.

It is a happy number.

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 79915118401 - 2²⁷ = 79780900673 is a prime.

It is a super-2 number, since 2×79915118401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79915118411) 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, 1263276 + ... + 1325026.

It is an arithmetic number, because the mean of its divisors is an integer number (10054398888).

Almost surely, 2^79915118401 is an apocalyptic number.

It is an amenable number.

79915118401 is a deficient number, since it is larger than the sum of its proper divisors (520072703).

79915118401 is a wasteful number, since it uses less digits than its factorization.

79915118401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70151.

The product of its (nonzero) digits is 90720, while the sum is 46.

The spelling of 79915118401 in words is "seventy-nine billion, nine hundred fifteen million, one hundred eighteen thousand, four hundred one".