79880696077 has 16 divisors (see below), whose sum is σ = 99981060480. Its totient is φ = 62131079232.

The previous prime is 79880696023. The next prime is 79880696083. The reversal of 79880696077 is 77069608897.

It is a cyclic number.

It is not a de Polignac number, because 79880696077 - 2¹¹ = 79880694029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79880696087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7433698 + ... + 7444435.

It is an arithmetic number, because the mean of its divisors is an integer number (6248816280).

Almost surely, 2^79880696077 is an apocalyptic number.

It is an amenable number.

79880696077 is a deficient number, since it is larger than the sum of its proper divisors (20100364403).

79880696077 is a wasteful number, since it uses less digits than its factorization.

79880696077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14878212.

The product of its (nonzero) digits is 64012032, while the sum is 67.

The spelling of 79880696077 in words is "seventy-nine billion, eight hundred eighty million, six hundred ninety-six thousand, seventy-seven".