79780007708 has 6 divisors (see below), whose sum is σ = 139615013496. Its totient is φ = 39890003852.

The previous prime is 79780007669. The next prime is 79780007711. The reversal of 79780007708 is 80770008797.

It is a self number, because there is not a number n which added to its sum of digits gives 79780007708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9972500960 + ... + 9972500967.

It is an arithmetic number, because the mean of its divisors is an integer number (23269168916).

Almost surely, 2^79780007708 is an apocalyptic number.

It is an amenable number.

79780007708 is a deficient number, since it is larger than the sum of its proper divisors (59835005788).

79780007708 is a wasteful number, since it uses less digits than its factorization.

79780007708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19945001931 (or 19945001929 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 53.

The spelling of 79780007708 in words is "seventy-nine billion, seven hundred eighty million, seven thousand, seven hundred eight".