18338375468630 has 32 divisors (see below), whose sum is σ = 37833374750976. Its totient is φ = 6269323577184.

The previous prime is 18338375468603. The next prime is 18338375468653. The reversal of 18338375468630 is 3686457383381.

It is a happy number.

It is a super-2 number, since 2×18338375468630² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377463884 + ... + 377512463.

It is an arithmetic number, because the mean of its divisors is an integer number (1182292960968).

Almost surely, 2^{18338375468630} is an apocalyptic number.

18338375468630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18338375468630 is an abundant number, since it is smaller than the sum of its proper divisors (19494999282346).

18338375468630 is a wasteful number, since it uses less digits than its factorization.

18338375468630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754976708.

The product of its (nonzero) digits is 209018880, while the sum is 65.

The spelling of 18338375468630 in words is "eighteen trillion, three hundred thirty-eight billion, three hundred seventy-five million, four hundred sixty-eight thousand, six hundred thirty".