80787120711 has 16 divisors (see below), whose sum is σ = 117610510080. Its totient is φ = 48919403520.

The previous prime is 80787120683. The next prime is 80787120731. The reversal of 80787120711 is 11702178708.

It is not a de Polignac number, because 80787120711 - 2²¹ = 80785023559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80787120731) 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, 1023571 + ... + 1099668.

It is an arithmetic number, because the mean of its divisors is an integer number (7350656880).

Almost surely, 2^80787120711 is an apocalyptic number.

80787120711 is a deficient number, since it is larger than the sum of its proper divisors (36823389369).

80787120711 is a wasteful number, since it uses less digits than its factorization.

80787120711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124406.

The product of its (nonzero) digits is 43904, while the sum is 42.

The spelling of 80787120711 in words is "eighty billion, seven hundred eighty-seven million, one hundred twenty thousand, seven hundred eleven".