12632146393 has 4 divisors (see below), whose sum is σ = 12636138240. Its totient is φ = 12628154548.

The previous prime is 12632146369. The next prime is 12632146399. The reversal of 12632146393 is 39364123621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39364123621 = 37 ⋅1063895233.

It is a cyclic number.

It is not a de Polignac number, because 12632146393 - 2¹⁷ = 12632015321 is a prime.

It is a super-2 number, since 2×12632146393² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12632146399) 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 3 ways as a sum of consecutive naturals, for example, 1991173 + ... + 1997506.

It is an arithmetic number, because the mean of its divisors is an integer number (3159034560).

Almost surely, 2^12632146393 is an apocalyptic number.

It is an amenable number.

12632146393 is a deficient number, since it is larger than the sum of its proper divisors (3991847).

12632146393 is an equidigital number, since it uses as much as digits as its factorization.

12632146393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991846.

The product of its digits is 139968, while the sum is 40.

The spelling of 12632146393 in words is "twelve billion, six hundred thirty-two million, one hundred forty-six thousand, three hundred ninety-three".