18812900770 has 16 divisors (see below), whose sum is σ = 33955498368. Its totient is φ = 7504654320.

The previous prime is 18812900759. The next prime is 18812900809. The reversal of 18812900770 is 7700921881.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2559396 + ... + 2566735.

It is an arithmetic number, because the mean of its divisors is an integer number (2122218648).

Almost surely, 2^18812900770 is an apocalyptic number.

18812900770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18812900770 is a deficient number, since it is larger than the sum of its proper divisors (15142597598).

18812900770 is a wasteful number, since it uses less digits than its factorization.

18812900770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126505.

The product of its (nonzero) digits is 56448, while the sum is 43.

The spelling of 18812900770 in words is "eighteen billion, eight hundred twelve million, nine hundred thousand, seven hundred seventy".