12532879520 has 48 divisors (see below), whose sum is σ = 33838777728. Its totient is φ = 4296986880.

The previous prime is 12532879507. The next prime is 12532879523. The reversal of 12532879520 is 2597823521.

It is not an unprimeable number, because it can be changed into a prime (12532879523) 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, 5593916 + ... + 5596155.

It is an arithmetic number, because the mean of its divisors is an integer number (704974536).

Almost surely, 2^12532879520 is an apocalyptic number.

12532879520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12532879520 is an abundant number, since it is smaller than the sum of its proper divisors (21305898208).

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

12532879520 is a wasteful number, since it uses less digits than its factorization.

12532879520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11190093 (or 11190085 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 12532879520 in words is "twelve billion, five hundred thirty-two million, eight hundred seventy-nine thousand, five hundred twenty".