79844684160 has 128 divisors (see below), whose sum is σ = 260423919360. Its totient is φ = 20796733440.

The previous prime is 79844684137. The next prime is 79844684167. The reversal of 79844684160 is 6148644897.

It is a happy number.

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

It is a super-2 number, since 2×79844684160² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79844684160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79844684167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400996 + ... + 566115.

It is an arithmetic number, because the mean of its divisors is an integer number (2034561870).

Almost surely, 2^79844684160 is an apocalyptic number.

It is an amenable number.

79844684160 is an abundant number, since it is smaller than the sum of its proper divisors (180579235200).

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

79844684160 is a wasteful number, since it uses less digits than its factorization.

79844684160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967176 (or 967164 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 79844684160 in words is "seventy-nine billion, eight hundred forty-four million, six hundred eighty-four thousand, one hundred sixty".