79419639680 has 32 divisors (see below), whose sum is σ = 189862577640. Its totient is φ = 31767855616.

The previous prime is 79419639641. The next prime is 79419639683. The reversal of 79419639680 is 8693691497.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79419639683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62045954 + ... + 62047233.

Almost surely, 2^79419639680 is an apocalyptic number.

It is an amenable number.

79419639680 is an abundant number, since it is smaller than the sum of its proper divisors (110442937960).

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

79419639680 is a wasteful number, since it uses less digits than its factorization.

79419639680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124093206 (or 124093194 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 79419639680 in words is "seventy-nine billion, four hundred nineteen million, six hundred thirty-nine thousand, six hundred eighty".