80681333677 has 32 divisors (see below), whose sum is σ = 101564088320. Its totient is φ = 62533503360.

The previous prime is 80681333627. The next prime is 80681333683. The reversal of 80681333677 is 77633318608.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80681333677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80681333627) 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, 166948 + ... + 435010.

It is an arithmetic number, because the mean of its divisors is an integer number (3173877760).

Almost surely, 2^80681333677 is an apocalyptic number.

It is an amenable number.

80681333677 is a deficient number, since it is larger than the sum of its proper divisors (20882754643).

80681333677 is a wasteful number, since it uses less digits than its factorization.

80681333677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268193.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 80681333677 in words is "eighty billion, six hundred eighty-one million, three hundred thirty-three thousand, six hundred seventy-seven".