13723839828 has 24 divisors (see below), whose sum is σ = 35580325760. Its totient is φ = 4574613240.

The previous prime is 13723839823. The next prime is 13723839851. The reversal of 13723839828 is 82893832731.

13723839828 is a `hidden beast` number, since 13 + 7 + 238 + 398 + 2 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13723839823) 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 7 ways as a sum of consecutive naturals, for example, 63536188 + ... + 63536403.

Almost surely, 2^13723839828 is an apocalyptic number.

13723839828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13723839828 is an abundant number, since it is smaller than the sum of its proper divisors (21856485932).

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

13723839828 is a wasteful number, since it uses less digits than its factorization.

13723839828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127072604 (or 127072596 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 13723839828 in words is "thirteen billion, seven hundred twenty-three million, eight hundred thirty-nine thousand, eight hundred twenty-eight".