79813983740208 has 160 divisors (see below), whose sum is σ = 216907583692800. Its totient is φ = 25240491226368.

The previous prime is 79813983740171. The next prime is 79813983740219. The reversal of 79813983740208 is 80204738931897.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159190491 + ... + 159691077.

It is an arithmetic number, because the mean of its divisors is an integer number (1355672398080).

Almost surely, 2^{79813983740208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79813983740208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108453791846400).

79813983740208 is an abundant number, since it is smaller than the sum of its proper divisors (137093599952592).

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

79813983740208 is a wasteful number, since it uses less digits than its factorization.

79813983740208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501799 (or 501793 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 79813983740208 in words is "seventy-nine trillion, eight hundred thirteen billion, nine hundred eighty-three million, seven hundred forty thousand, two hundred eight".