12339525540 has 24 divisors (see below), whose sum is σ = 34550671680. Its totient is φ = 3290540128.

The previous prime is 12339525529. The next prime is 12339525571. The reversal of 12339525540 is 4552593321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102829320 + ... + 102829439.

It is an arithmetic number, because the mean of its divisors is an integer number (1439611320).

Almost surely, 2^12339525540 is an apocalyptic number.

12339525540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12339525540 is an abundant number, since it is smaller than the sum of its proper divisors (22211146140).

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

12339525540 is a wasteful number, since it uses less digits than its factorization.

12339525540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205658771 (or 205658769 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 12339525540 in words is "twelve billion, three hundred thirty-nine million, five hundred twenty-five thousand, five hundred forty".