80979750916 has 48 divisors (see below), whose sum is σ = 150554965680. Its totient is φ = 38044160000.

The previous prime is 80979750911. The next prime is 80979750919. The reversal of 80979750916 is 61905797908.

It can be written as a sum of positive squares in 8 ways, for example, as 14774402500 + 66205348416 = 121550^2 + 257304^2 .

It is not an unprimeable number, because it can be changed into a prime (80979750911) 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, 1885926 + ... + 1928386.

It is an arithmetic number, because the mean of its divisors is an integer number (3136561785).

Almost surely, 2^80979750916 is an apocalyptic number.

It is an amenable number.

80979750916 is a deficient number, since it is larger than the sum of its proper divisors (69575214764).

80979750916 is a wasteful number, since it uses less digits than its factorization.

80979750916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42936 (or 42934 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 61.

The spelling of 80979750916 in words is "eighty billion, nine hundred seventy-nine million, seven hundred fifty thousand, nine hundred sixteen".