18361740843792 has 160 divisors (see below), whose sum is σ = 55850725324800. Its totient is φ = 5755856136192.

The previous prime is 18361740843791. The next prime is 18361740843793. The reversal of 18361740843792 is 29734804716381.

18361740843792 is a `hidden beast` number, since 1 + 8 + 3 + 617 + 4 + 0 + 8 + 4 + 3 + 7 + 9 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18361740843791) and next prime (18361740843793).

It is not an unprimeable number, because it can be changed into a prime (18361740843791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8008593 + ... + 10042959.

It is an arithmetic number, because the mean of its divisors is an integer number (349067033280).

Almost surely, 2^{18361740843792} is an apocalyptic number.

18361740843792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18361740843792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27925362662400).

18361740843792 is an abundant number, since it is smaller than the sum of its proper divisors (37488984481008).

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

18361740843792 is a wasteful number, since it uses less digits than its factorization.

18361740843792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035630 (or 2035618 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 18361740843792 in words is "eighteen trillion, three hundred sixty-one billion, seven hundred forty million, eight hundred forty-three thousand, seven hundred ninety-two".