12521436088 has 96 divisors (see below), whose sum is σ = 30439573200. Its totient is φ = 4784790528.

The previous prime is 12521436079. The next prime is 12521436091. The reversal of 12521436088 is 88063412521.

It is a self number, because there is not a number n which added to its sum of digits gives 12521436088.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77170 + ... + 176062.

Almost surely, 2^12521436088 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 12521436088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15219786600).

12521436088 is an abundant number, since it is smaller than the sum of its proper divisors (17918137112).

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

12521436088 is a wasteful number, since it uses less digits than its factorization.

12521436088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98949 (or 98938 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 12521436088 in words is "twelve billion, five hundred twenty-one million, four hundred thirty-six thousand, eighty-eight".