79180158780 has 144 divisors (see below), whose sum is σ = 245959537824. Its totient is φ = 20610670080.

The previous prime is 79180158773. The next prime is 79180158797. The reversal of 79180158780 is 8785108197.

It is a super-2 number, since 2×79180158780² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1858315 + ... + 1900445.

It is an arithmetic number, because the mean of its divisors is an integer number (1708052346).

Almost surely, 2^79180158780 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 79180158780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122979768912).

79180158780 is an abundant number, since it is smaller than the sum of its proper divisors (166779379044).

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

79180158780 is a wasteful number, since it uses less digits than its factorization.

79180158780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42396 (or 42391 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 54.

The spelling of 79180158780 in words is "seventy-nine billion, one hundred eighty million, one hundred fifty-eight thousand, seven hundred eighty".