80780814528 has 112 divisors (see below), whose sum is σ = 217552194816. Its totient is φ = 26447016960.

The previous prime is 80780814511. The next prime is 80780814551. The reversal of 80780814528 is 82541808708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8697375 + ... + 8706657.

Almost surely, 2^80780814528 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 80780814528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108776097408).

80780814528 is an abundant number, since it is smaller than the sum of its proper divisors (136771380288).

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

80780814528 is a wasteful number, since it uses less digits than its factorization.

80780814528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102 (or 10092 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 51.

The spelling of 80780814528 in words is "eighty billion, seven hundred eighty million, eight hundred fourteen thousand, five hundred twenty-eight".