12939230628 has 60 divisors (see below), whose sum is σ = 33838019292. Its totient is φ = 4311506880.

The previous prime is 12939230611. The next prime is 12939230677. The reversal of 12939230628 is 82603293921.

It is a happy number.

12939230628 is a `hidden beast` number, since 12 + 9 + 3 + 9 + 2 + 3 + 0 + 628 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7830126144 + 5109104484 = 88488^2 + 71478^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1185918 + ... + 1196778.

Almost surely, 2^12939230628 is an apocalyptic number.

12939230628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12939230628 is an abundant number, since it is smaller than the sum of its proper divisors (20898788664).

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

12939230628 is a wasteful number, since it uses less digits than its factorization.

12939230628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14554 (or 14543 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 12939230628 in words is "twelve billion, nine hundred thirty-nine million, two hundred thirty thousand, six hundred twenty-eight".