79836458880 has 128 divisors (see below), whose sum is σ = 258792278400. Its totient is φ = 20928849920.

The previous prime is 79836458861. The next prime is 79836458899. The reversal of 79836458880 is 8885463897.

It is an interprime number because it is at equal distance from previous prime (79836458861) and next prime (79836458899).

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 239106 + ... + 465665.

It is an arithmetic number, because the mean of its divisors is an integer number (2021814675).

Almost surely, 2^79836458880 is an apocalyptic number.

It is an amenable number.

79836458880 is an abundant number, since it is smaller than the sum of its proper divisors (178955819520).

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

79836458880 is a wasteful number, since it uses less digits than its factorization.

79836458880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704852 (or 704840 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 66.

The spelling of 79836458880 in words is "seventy-nine billion, eight hundred thirty-six million, four hundred fifty-eight thousand, eight hundred eighty".