79404698784 has 48 divisors (see below), whose sum is σ = 217499833152. Its totient is φ = 25317439488.

The previous prime is 79404698783. The next prime is 79404698833. The reversal of 79404698784 is 48789640497.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (79404698783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17978929 + ... + 17983344.

It is an arithmetic number, because the mean of its divisors is an integer number (4531246524).

Almost surely, 2^79404698784 is an apocalyptic number.

It is an amenable number.

79404698784 is an abundant number, since it is smaller than the sum of its proper divisors (138095134368).

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

79404698784 is a wasteful number, since it uses less digits than its factorization.

79404698784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35962309 (or 35962301 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 66.

The spelling of 79404698784 in words is "seventy-nine billion, four hundred four million, six hundred ninety-eight thousand, seven hundred eighty-four".