79223849520 has 80 divisors (see below), whose sum is σ = 254062712160. Its totient is φ = 20397862912.

The previous prime is 79223849503. The next prime is 79223849543. The reversal of 79223849520 is 2594832297.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5684409 + ... + 5698328.

It is an arithmetic number, because the mean of its divisors is an integer number (3175783902).

Almost surely, 2^79223849520 is an apocalyptic number.

It is an amenable number.

79223849520 is an abundant number, since it is smaller than the sum of its proper divisors (174838862640).

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

79223849520 is a wasteful number, since it uses less digits than its factorization.

79223849520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382782 (or 11382776 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 79223849520 in words is "seventy-nine billion, two hundred twenty-three million, eight hundred forty-nine thousand, five hundred twenty".