79117985546 has 8 divisors (see below), whose sum is σ = 119829182304. Its totient is φ = 39174924780.

The previous prime is 79117985539. The next prime is 79117985549. The reversal of 79117985546 is 64558971197.

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

It is not an unprimeable number, because it can be changed into a prime (79117985549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192033740 + ... + 192034151.

It is an arithmetic number, because the mean of its divisors is an integer number (14978647788).

Almost surely, 2^79117985546 is an apocalyptic number.

79117985546 is a deficient number, since it is larger than the sum of its proper divisors (40711196758).

79117985546 is a wasteful number, since it uses less digits than its factorization.

79117985546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384067996.

The product of its digits is 19051200, while the sum is 62.

The spelling of 79117985546 in words is "seventy-nine billion, one hundred seventeen million, nine hundred eighty-five thousand, five hundred forty-six".