18672288730 has 32 divisors (see below), whose sum is σ = 34357089600. Its totient is φ = 7304236032.

The previous prime is 18672288643. The next prime is 18672288737. The reversal of 18672288730 is 3788227681.

It is not an unprimeable number, because it can be changed into a prime (18672288737) by changing a digit.

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, 31881 + ... + 195859.

It is an arithmetic number, because the mean of its divisors is an integer number (1073659050).

Almost surely, 2^18672288730 is an apocalyptic number.

18672288730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18672288730 is a deficient number, since it is larger than the sum of its proper divisors (15684800870).

18672288730 is a wasteful number, since it uses less digits than its factorization.

18672288730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164238.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 18672288730 in words is "eighteen billion, six hundred seventy-two million, two hundred eighty-eight thousand, seven hundred thirty".