18683758632 has 128 divisors (see below), whose sum is σ = 58318156800. Its totient is φ = 4846003200.

The previous prime is 18683758619. The next prime is 18683758637. The reversal of 18683758632 is 23685738681.

It is a super-2 number, since 2×18683758632² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18683758637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1358832 + ... + 1372512.

It is an arithmetic number, because the mean of its divisors is an integer number (455610600).

Almost surely, 2^18683758632 is an apocalyptic number.

18683758632 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 18683758632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29159078400).

18683758632 is an abundant number, since it is smaller than the sum of its proper divisors (39634398168).

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

18683758632 is a wasteful number, since it uses less digits than its factorization.

18683758632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14447 (or 14443 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 18683758632 in words is "eighteen billion, six hundred eighty-three million, seven hundred fifty-eight thousand, six hundred thirty-two".