18628122974 has 8 divisors (see below), whose sum is σ = 28536699168. Its totient is φ = 9115889920.

The previous prime is 18628122967. The next prime is 18628123043. The reversal of 18628122974 is 47922182681.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 99085667 + ... + 99085854.

It is an arithmetic number, because the mean of its divisors is an integer number (3567087396).

Almost surely, 2^18628122974 is an apocalyptic number.

18628122974 is a deficient number, since it is larger than the sum of its proper divisors (9908576194).

18628122974 is a wasteful number, since it uses less digits than its factorization.

18628122974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198171570.

The product of its digits is 774144, while the sum is 50.

The spelling of 18628122974 in words is "eighteen billion, six hundred twenty-eight million, one hundred twenty-two thousand, nine hundred seventy-four".