80887140432 has 150 divisors (see below), whose sum is σ = 272333245338. Its totient is φ = 23110593408.

The previous prime is 80887140409. The next prime is 80887140449. The reversal of 80887140432 is 23404178808.

It can be written as a sum of positive squares in only one way, i.e., 63250238016 + 17636902416 = 251496^2 + 132804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 573363 + ... + 700370.

Almost surely, 2^80887140432 is an apocalyptic number.

It is an amenable number.

80887140432 is an abundant number, since it is smaller than the sum of its proper divisors (191446104906).

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

80887140432 is a wasteful number, since it uses less digits than its factorization.

80887140432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273767 (or 1273745 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 80887140432 in words is "eighty billion, eight hundred eighty-seven million, one hundred forty thousand, four hundred thirty-two".