80919892671 has 8 divisors (see below), whose sum is σ = 107956926000. Its totient is φ = 53914727232.

The previous prime is 80919892663. The next prime is 80919892673. The reversal of 80919892671 is 17629891908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80919892671 - 2³ = 80919892663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80919892673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7961046 + ... + 7971203.

It is an arithmetic number, because the mean of its divisors is an integer number (13494615750).

Almost surely, 2^80919892671 is an apocalyptic number.

80919892671 is a deficient number, since it is larger than the sum of its proper divisors (27037033329).

80919892671 is a wasteful number, since it uses less digits than its factorization.

80919892671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15933945.

The product of its (nonzero) digits is 3919104, while the sum is 60.

The spelling of 80919892671 in words is "eighty billion, nine hundred nineteen million, eight hundred ninety-two thousand, six hundred seventy-one".