18374133688036 has 81 divisors (see below), whose sum is σ = 37600357259241. Its totient is φ = 7833606861024.

The previous prime is 18374133688019. The next prime is 18374133688063. The reversal of 18374133688036 is 63088633147381.

It is a happy number.

The square root of 18374133688036 is 4286506.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18160637940900 + 213495747136 = 4261530^2 + 462056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13382471046 + ... + 13382472418.

Almost surely, 2^{18374133688036} is an apocalyptic number.

18374133688036 is the 4286506-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18374133688036

18374133688036 is an abundant number, since it is smaller than the sum of its proper divisors (19226223571205).

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

18374133688036 is an frugal number, since it uses more digits than its factorization.

18374133688036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 18374133688036 in words is "eighteen trillion, three hundred seventy-four billion, one hundred thirty-three million, six hundred eighty-eight thousand, thirty-six".