12536526357 has 16 divisors (see below), whose sum is σ = 18597196480. Its totient is φ = 8346630096.

The previous prime is 12536526313. The next prime is 12536526391. The reversal of 12536526357 is 75362563521.

12536526357 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 6 + 5 + 2 + 635 + 7 = 666.

It is not a de Polignac number, because 12536526357 - 2⁶ = 12536526293 is a prime.

It is a super-3 number, since 3×12536526357³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536526397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286243 + ... + 327120.

It is an arithmetic number, because the mean of its divisors is an integer number (1162324780).

Almost surely, 2^12536526357 is an apocalyptic number.

It is an amenable number.

12536526357 is a deficient number, since it is larger than the sum of its proper divisors (6060670123).

12536526357 is an equidigital number, since it uses as much as digits as its factorization.

12536526357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614129 (or 614123 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The spelling of 12536526357 in words is "twelve billion, five hundred thirty-six million, five hundred twenty-six thousand, three hundred fifty-seven".