13818377232 has 120 divisors (see below), whose sum is σ = 42468049728. Its totient is φ = 4159584000.

The previous prime is 13818377219. The next prime is 13818377297. The reversal of 13818377232 is 23277381831.

It is a happy number.

13818377232 is a `hidden beast` number, since 1 + 38 + 18 + 377 + 232 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210298 + ... + 268070.

Almost surely, 2^13818377232 is an apocalyptic number.

13818377232 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 13818377232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21234024864).

13818377232 is an abundant number, since it is smaller than the sum of its proper divisors (28649672496).

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

13818377232 is a wasteful number, since it uses less digits than its factorization.

13818377232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57949 (or 57940 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The spelling of 13818377232 in words is "thirteen billion, eight hundred eighteen million, three hundred seventy-seven thousand, two hundred thirty-two".