18801272830 has 16 divisors (see below), whose sum is σ = 34667713584. Its totient is φ = 7337081920.

The previous prime is 18801272827. The next prime is 18801272843. The reversal of 18801272830 is 3827210881.

It is a congruent 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, 22927972 + ... + 22928791.

It is an arithmetic number, because the mean of its divisors is an integer number (2166732099).

Almost surely, 2^18801272830 is an apocalyptic number.

18801272830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18801272830 is a deficient number, since it is larger than the sum of its proper divisors (15866440754).

18801272830 is a wasteful number, since it uses less digits than its factorization.

18801272830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45856811.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 18801272830 in words is "eighteen billion, eight hundred one million, two hundred seventy-two thousand, eight hundred thirty".