12358961613 has 10 divisors (see below), whose sum is σ = 18462152654. Its totient is φ = 8239307688.

The previous prime is 12358961609. The next prime is 12358961617. The reversal of 12358961613 is 31616985321.

12358961613 is a `hidden beast` number, since 1 + 2 + 3 + 589 + 6 + 1 + 61 + 3 = 666.

12358961613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12358961609) and next prime (12358961617).

It can be written as a sum of positive squares in only one way, i.e., 12208703049 + 150258564 = 110493^2 + 12258^2 .

It is not a de Polignac number, because 12358961613 - 2² = 12358961609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12358961617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 76289806 + ... + 76289967.

Almost surely, 2^12358961613 is an apocalyptic number.

It is an amenable number.

12358961613 is a deficient number, since it is larger than the sum of its proper divisors (6103191041).

12358961613 is an equidigital number, since it uses as much as digits as its factorization.

12358961613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152579785 (or 152579776 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 12358961613 in words is "twelve billion, three hundred fifty-eight million, nine hundred sixty-one thousand, six hundred thirteen".