808080780 has 48 divisors (see below), whose sum is σ = 2436676704. Its totient is φ = 198912000.

The previous prime is 808080739. The next prime is 808080797. The reversal of 808080780 is 87080808.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517221 + ... + 518780.

It is an arithmetic number, because the mean of its divisors is an integer number (50764098).

Almost surely, 2^808080780 is an apocalyptic number.

It is an amenable number.

808080780 is an abundant number, since it is smaller than the sum of its proper divisors (1628595924).

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

808080780 is a wasteful number, since it uses less digits than its factorization.

808080780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036026 (or 1036024 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 808080780 is about 28426.7616868331. The cubic root of 808080780 is about 931.4329395717.

The spelling of 808080780 in words is "eight hundred eight million, eighty thousand, seven hundred eighty".