18374265620128 has 48 divisors (see below), whose sum is σ = 39474355838400. Its totient is φ = 8349516812800.

The previous prime is 18374265620107. The next prime is 18374265620131. The reversal of 18374265620128 is 82102656247381.

It is a happy number.

It is a super-2 number, since 2×18374265620128² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6353308 + ... + 8781403.

It is an arithmetic number, because the mean of its divisors is an integer number (822382413300).

Almost surely, 2^{18374265620128} is an apocalyptic number.

It is an amenable number.

18374265620128 is an abundant number, since it is smaller than the sum of its proper divisors (21100090218272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18374265620128 is a wasteful number, since it uses less digits than its factorization.

18374265620128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15138181 (or 15138173 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 18374265620128 in words is "eighteen trillion, three hundred seventy-four billion, two hundred sixty-five million, six hundred twenty thousand, one hundred twenty-eight".