12319513637 has 2 divisors, whose sum is σ = 12319513638. Its totient is φ = 12319513636.

The previous prime is 12319513601. The next prime is 12319513733. The reversal of 12319513637 is 73631591321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11809386241 + 510127396 = 108671^2 + 22586^2 .

It is a cyclic number.

It is not a de Polignac number, because 12319513637 - 2¹⁸ = 12319251493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12319513594 and 12319513603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12319513537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159756818 + 6159756819.

It is an arithmetic number, because the mean of its divisors is an integer number (6159756819).

Almost surely, 2^12319513637 is an apocalyptic number.

It is an amenable number.

12319513637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12319513637 is an equidigital number, since it uses as much as digits as its factorization.

12319513637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The spelling of 12319513637 in words is "twelve billion, three hundred nineteen million, five hundred thirteen thousand, six hundred thirty-seven".