12533342745 has 144 divisors (see below), whose sum is σ = 26134436160. Its totient is φ = 5108463360.

The previous prime is 12533342729. The next prime is 12533342753. The reversal of 12533342745 is 54724333521.

It is a happy number.

It is not a de Polignac number, because 12533342745 - 2⁴ = 12533342729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4712226 + ... + 4714884.

It is an arithmetic number, because the mean of its divisors is an integer number (181489140).

Almost surely, 2^12533342745 is an apocalyptic number.

12533342745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12533342745 is an abundant number, since it is smaller than the sum of its proper divisors (13601093415).

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

12533342745 is a wasteful number, since it uses less digits than its factorization.

12533342745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2738 counting only the distinct ones).

The product of its digits is 302400, while the sum is 39.

The spelling of 12533342745 in words is "twelve billion, five hundred thirty-three million, three hundred forty-two thousand, seven hundred forty-five".