80891587392 has 224 divisors, whose sum is σ = 280882222080. Its totient is φ = 19904901120.

The previous prime is 80891587369. The next prime is 80891587423. The reversal of 80891587392 is 29378519808.

It is a tau number, because it is divible by the number of its divisors (224).

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, 136908 + ... + 424884.

Almost surely, 2^80891587392 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 80891587392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140441111040).

80891587392 is an abundant number, since it is smaller than the sum of its proper divisors (199990634688).

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

80891587392 is a wasteful number, since it uses less digits than its factorization.

80891587392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288029 (or 288019 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 80891587392 in words is "eighty billion, eight hundred ninety-one million, five hundred eighty-seven thousand, three hundred ninety-two".