18238984622 has 8 divisors (see below), whose sum is σ = 27363134016. Its totient is φ = 9117939952.

The previous prime is 18238984607. The next prime is 18238984637. The reversal of 18238984622 is 22648983281.

It is an interprime number because it is at equal distance from previous prime (18238984607) and next prime (18238984637).

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, 761438 + ... + 785025.

It is an arithmetic number, because the mean of its divisors is an integer number (3420391752).

Almost surely, 2^18238984622 is an apocalyptic number.

18238984622 is a deficient number, since it is larger than the sum of its proper divisors (9124149394).

18238984622 is a wasteful number, since it uses less digits than its factorization.

18238984622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552362.

The product of its digits is 2654208, while the sum is 53.

The spelling of 18238984622 in words is "eighteen billion, two hundred thirty-eight million, nine hundred eighty-four thousand, six hundred twenty-two".