12546356013 has 12 divisors (see below), whose sum is σ = 19076331040. Its totient is φ = 7924014216.

The previous prime is 12546355973. The next prime is 12546356021. The reversal of 12546356013 is 31065364521.

12546356013 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 635 + 6 + 0 + 13 = 666.

It is not a de Polignac number, because 12546356013 - 2⁹ = 12546355501 is a prime.

It is a super-2 number, since 2×12546356013² (a number of 21 digits) contains 22 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 (12546356023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36685081 + ... + 36685422.

Almost surely, 2^12546356013 is an apocalyptic number.

It is an amenable number.

12546356013 is a deficient number, since it is larger than the sum of its proper divisors (6529975027).

12546356013 is a wasteful number, since it uses less digits than its factorization.

12546356013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73370528 (or 73370525 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

It can be divided in two parts, 125463 and 56013, that added together give a square (181476 = 426²).

The spelling of 12546356013 in words is "twelve billion, five hundred forty-six million, three hundred fifty-six thousand, thirteen".