80809760906 has 12 divisors (see below), whose sum is σ = 141004787058. Its totient is φ = 34632754632.

The previous prime is 80809760887. The next prime is 80809760917. The reversal of 80809760906 is 60906790808.

It can be written as a sum of positive squares in only one way, i.e., 80630442025 + 179318881 = 283955^2 + 13391^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412294601 + ... + 412294796.

Almost surely, 2^80809760906 is an apocalyptic number.

80809760906 is a deficient number, since it is larger than the sum of its proper divisors (60195026152).

80809760906 is a wasteful number, since it uses less digits than its factorization.

80809760906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824589413 (or 824589406 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 80809760906 in words is "eighty billion, eight hundred nine million, seven hundred sixty thousand, nine hundred six".