79915118398 has 8 divisors (see below), whose sum is σ = 119882569608. Its totient is φ = 39954261864.

The previous prime is 79915118363. The next prime is 79915118411. The reversal of 79915118398 is 89381151997.

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

It is a super-3 number, since 3×79915118398³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618261 + ... + 1666912.

It is an arithmetic number, because the mean of its divisors is an integer number (14985321201).

Almost surely, 2^79915118398 is an apocalyptic number.

79915118398 is a deficient number, since it is larger than the sum of its proper divisors (39967451210).

79915118398 is a wasteful number, since it uses less digits than its factorization.

79915118398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297338.

The product of its digits is 4898880, while the sum is 61.

The spelling of 79915118398 in words is "seventy-nine billion, nine hundred fifteen million, one hundred eighteen thousand, three hundred ninety-eight".