12530136735 has 24 divisors (see below), whose sum is σ = 21829167360. Its totient is φ = 6648812352.

The previous prime is 12530136721. The next prime is 12530136743. The reversal of 12530136735 is 53763103521.

It is not a de Polignac number, because 12530136735 - 2⁷ = 12530136607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12530136735.

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, 697855 + ... + 715584.

It is an arithmetic number, because the mean of its divisors is an integer number (909548640).

Almost surely, 2^12530136735 is an apocalyptic number.

12530136735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12530136735 is a deficient number, since it is larger than the sum of its proper divisors (9299030625).

12530136735 is a wasteful number, since it uses less digits than its factorization.

12530136735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413647 (or 1413644 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The spelling of 12530136735 in words is "twelve billion, five hundred thirty million, one hundred thirty-six thousand, seven hundred thirty-five".