80910727682 has 16 divisors (see below), whose sum is σ = 122196195000. Its totient is φ = 40178732160.

The previous prime is 80910727657. The next prime is 80910727691. The reversal of 80910727682 is 28672701908.

It can be written as a sum of positive squares in 4 ways, for example, as 77823702961 + 3087024721 = 278969^2 + 55561^2 .

It is a super-2 number, since 2×80910727682² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80910727682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3576944 + ... + 3599492.

Almost surely, 2^80910727682 is an apocalyptic number.

80910727682 is a deficient number, since it is larger than the sum of its proper divisors (41285467318).

80910727682 is a wasteful number, since it uses less digits than its factorization.

80910727682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34741.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 80910727682 in words is "eighty billion, nine hundred ten million, seven hundred twenty-seven thousand, six hundred eighty-two".