80987214720 has 256 divisors, whose sum is σ = 265129562880. Its totient is φ = 21015183360.

The previous prime is 80987214713. The next prime is 80987214731. The reversal of 80987214720 is 2741278908.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 80987214720.

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, 36761139 + ... + 36763341.

It is an arithmetic number, because the mean of its divisors is an integer number (1035662355).

Almost surely, 2^80987214720 is an apocalyptic number.

80987214720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80987214720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132564781440).

80987214720 is an abundant number, since it is smaller than the sum of its proper divisors (184142348160).

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

80987214720 is a wasteful number, since it uses less digits than its factorization.

80987214720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 80987214720 in words is "eighty billion, nine hundred eighty-seven million, two hundred fourteen thousand, seven hundred twenty".