2806086780 has 96 divisors (see below), whose sum is σ = 9977210880. Its totient is φ = 641390400.

The previous prime is 2806086769. The next prime is 2806086823. The reversal of 2806086780 is 876806082.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 367396 + ... + 374955.

It is an arithmetic number, because the mean of its divisors is an integer number (103929280).

Almost surely, 2^2806086780 is an apocalyptic number.

2806086780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2806086780 is an abundant number, since it is smaller than the sum of its proper divisors (7171124100).

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

2806086780 is a wasteful number, since it uses less digits than its factorization.

2806086780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742376 (or 742368 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2806086780 is about 52972.5096630318. The cubic root of 2806086780 is about 1410.4803252646.

The spelling of 2806086780 in words is "two billion, eight hundred six million, eighty-six thousand, seven hundred eighty".