12535290624 has 72 divisors (see below), whose sum is σ = 33398632960. Its totient is φ = 4173861888.

The previous prime is 12535290613. The next prime is 12535290661. The reversal of 12535290624 is 42609253521.

It is a super-2 number, since 2×12535290624² (a number of 21 digits) contains 22 as substring.

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, 734217 + ... + 751095.

Almost surely, 2^12535290624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12535290624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16699316480).

12535290624 is an abundant number, since it is smaller than the sum of its proper divisors (20863342336).

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

12535290624 is an equidigital number, since it uses as much as digits as its factorization.

12535290624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17865 (or 17851 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 12535290624 in words is "twelve billion, five hundred thirty-five million, two hundred ninety thousand, six hundred twenty-four".