12538284135 has 16 divisors (see below), whose sum is σ = 21604428384. Its totient is φ = 6172693632.

The previous prime is 12538284113. The next prime is 12538284151. The reversal of 12538284135 is 53148283521.

It is not a de Polignac number, because 12538284135 - 2²⁴ = 12521506919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32149252 + ... + 32149641.

It is an arithmetic number, because the mean of its divisors is an integer number (1350276774).

Almost surely, 2^12538284135 is an apocalyptic number.

12538284135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12538284135 is a deficient number, since it is larger than the sum of its proper divisors (9066144249).

12538284135 is a wasteful number, since it uses less digits than its factorization.

12538284135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64298914.

The product of its digits is 230400, while the sum is 42.

The spelling of 12538284135 in words is "twelve billion, five hundred thirty-eight million, two hundred eighty-four thousand, one hundred thirty-five".