79549418004 has 96 divisors (see below), whose sum is σ = 221850316800. Its totient is φ = 21691557888.

The previous prime is 79549417943. The next prime is 79549418017. The reversal of 79549418004 is 40081494597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821617 + ... + 913319.

It is an arithmetic number, because the mean of its divisors is an integer number (2310940800).

Almost surely, 2^79549418004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79549418004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110925158400).

79549418004 is an abundant number, since it is smaller than the sum of its proper divisors (142300898796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79549418004 is a wasteful number, since it uses less digits than its factorization.

79549418004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92189 (or 92187 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 79549418004 in words is "seventy-nine billion, five hundred forty-nine million, four hundred eighteen thousand, four".