80905497795 has 12 divisors (see below), whose sum is σ = 140236196256. Its totient is φ = 43149598800.

The previous prime is 80905497787. The next prime is 80905497811. The reversal of 80905497795 is 59779450908.

80905497795 is a `hidden beast` number, since 80 + 9 + 0 + 549 + 7 + 7 + 9 + 5 = 666.

It is not a de Polignac number, because 80905497795 - 2³ = 80905497787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898949931 + ... + 898950020.

It is an arithmetic number, because the mean of its divisors is an integer number (11686349688).

Almost surely, 2^80905497795 is an apocalyptic number.

80905497795 is a deficient number, since it is larger than the sum of its proper divisors (59330698461).

80905497795 is a wasteful number, since it uses less digits than its factorization.

80905497795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797899962 (or 1797899959 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 80905497795 in words is "eighty billion, nine hundred five million, four hundred ninety-seven thousand, seven hundred ninety-five".