7638986232 has 80 divisors (see below), whose sum is σ = 21559804200. Its totient is φ = 2526863040.

The previous prime is 7638986221. The next prime is 7638986273. The reversal of 7638986232 is 2326898367.

It is a happy number.

7638986232 is a `hidden beast` number, since 7 + 6 + 3 + 8 + 9 + 8 + 623 + 2 = 666.

It is a super-2 number, since 2×7638986232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 39894 + ... + 129882.

Almost surely, 2^7638986232 is an apocalyptic number.

7638986232 is a gapful number since it is divisible by the number (72) 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 7638986232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10779902100).

7638986232 is an abundant number, since it is smaller than the sum of its proper divisors (13920817968).

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

7638986232 is a wasteful number, since it uses less digits than its factorization.

7638986232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90138 (or 90125 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 7638986232 is about 87401.2942238271. The cubic root of 7638986232 is about 1969.4512830118.

The spelling of 7638986232 in words is "seven billion, six hundred thirty-eight million, nine hundred eighty-six thousand, two hundred thirty-two".