80867998140 has 96 divisors (see below), whose sum is σ = 234387578880. Its totient is φ = 20807920896.

The previous prime is 80867998129. The next prime is 80867998163. The reversal of 80867998140 is 4189976808.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2879647 + ... + 2907593.

It is an arithmetic number, because the mean of its divisors is an integer number (2441537280).

Almost surely, 2^80867998140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80867998140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117193789440).

80867998140 is an abundant number, since it is smaller than the sum of its proper divisors (153519580740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80867998140 is a wasteful number, since it uses less digits than its factorization.

80867998140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29651 (or 29649 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 80867998140 in words is "eighty billion, eight hundred sixty-seven million, nine hundred ninety-eight thousand, one hundred forty".