12731751828 has 24 divisors (see below), whose sum is σ = 33008245760. Its totient is φ = 4243917240.

The previous prime is 12731751827. The next prime is 12731751829. The reversal of 12731751828 is 82815713721.

12731751828 is a `hidden beast` number, since 127 + 3 + 1 + 7 + 518 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (12731751827) and next prime (12731751829).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731751827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58943188 + ... + 58943403.

Almost surely, 2^12731751828 is an apocalyptic number.

12731751828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12731751828 is an abundant number, since it is smaller than the sum of its proper divisors (20276493932).

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

12731751828 is a wasteful number, since it uses less digits than its factorization.

12731751828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117886604 (or 117886596 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The spelling of 12731751828 in words is "twelve billion, seven hundred thirty-one million, seven hundred fifty-one thousand, eight hundred twenty-eight".