80810944705 has 32 divisors (see below), whose sum is σ = 101766067200. Its totient is φ = 61486392000.

The previous prime is 80810944703. The next prime is 80810944757. The reversal of 80810944705 is 50744901808.

It is not a de Polignac number, because 80810944705 - 2¹ = 80810944703 is a prime.

It is a super-2 number, since 2×80810944705² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80810944703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19712746 + ... + 19716844.

It is an arithmetic number, because the mean of its divisors is an integer number (3180189600).

Almost surely, 2^80810944705 is an apocalyptic number.

It is an amenable number.

80810944705 is a deficient number, since it is larger than the sum of its proper divisors (20955122495).

80810944705 is a wasteful number, since it uses less digits than its factorization.

80810944705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 80810944705 in words is "eighty billion, eight hundred ten million, nine hundred forty-four thousand, seven hundred five".