80780305508 has 48 divisors (see below), whose sum is σ = 172505625600. Its totient is φ = 32344782624.

The previous prime is 80780305499. The next prime is 80780305511. The reversal of 80780305508 is 80550308708.

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, 1430858 + ... + 1486241.

It is an arithmetic number, because the mean of its divisors is an integer number (3593867200).

Almost surely, 2^80780305508 is an apocalyptic number.

It is an amenable number.

80780305508 is an abundant number, since it is smaller than the sum of its proper divisors (91725320092).

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

80780305508 is a wasteful number, since it uses less digits than its factorization.

80780305508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917176 (or 2917174 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 80780305508 in words is "eighty billion, seven hundred eighty million, three hundred five thousand, five hundred eight".