12575635536 has 20 divisors (see below), whose sum is σ = 32487058592. Its totient is φ = 4191878496.

The previous prime is 12575635529. The next prime is 12575635561. The reversal of 12575635536 is 63553657521.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 261992407 = 12575635536 / (1 + 2 + 5 + 7 + 5 + 6 + 3 + 5 + 5 + 3 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130996156 + ... + 130996251.

Almost surely, 2^12575635536 is an apocalyptic number.

12575635536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12575635536 is an abundant number, since it is smaller than the sum of its proper divisors (19911423056).

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

12575635536 is a wasteful number, since it uses less digits than its factorization.

12575635536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261992418 (or 261992412 counting only the distinct ones).

The product of its digits is 2835000, while the sum is 48.

The spelling of 12575635536 in words is "twelve billion, five hundred seventy-five million, six hundred thirty-five thousand, five hundred thirty-six".