18740365632 has 112 divisors (see below), whose sum is σ = 55157827200. Its totient is φ = 6239462400.

The previous prime is 18740365603. The next prime is 18740365663. The reversal of 18740365632 is 23656304781.

18740365632 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 0 + 3 + 6 + 5 + 632 = 666.

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, 1582132 + ... + 1593932.

It is an arithmetic number, because the mean of its divisors is an integer number (492480600).

Almost surely, 2^18740365632 is an apocalyptic number.

18740365632 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 18740365632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27578913600).

18740365632 is an abundant number, since it is smaller than the sum of its proper divisors (36417461568).

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

18740365632 is a wasteful number, since it uses less digits than its factorization.

18740365632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12741 (or 12725 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 18740365632 in words is "eighteen billion, seven hundred forty million, three hundred sixty-five thousand, six hundred thirty-two".