12926363557 has 2 divisors, whose sum is σ = 12926363558. Its totient is φ = 12926363556.

The previous prime is 12926363551. The next prime is 12926363563. The reversal of 12926363557 is 75536362921.

It is a balanced prime because it is at equal distance from previous prime (12926363551) and next prime (12926363563).

It can be written as a sum of positive squares in only one way, i.e., 11560765441 + 1365598116 = 107521^2 + 36954^2 .

It is a cyclic number.

It is not a de Polignac number, because 12926363557 - 2¹⁵ = 12926330789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12926363557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12926363551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6463181778 + 6463181779.

It is an arithmetic number, because the mean of its divisors is an integer number (6463181779).

Almost surely, 2^12926363557 is an apocalyptic number.

It is an amenable number.

12926363557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12926363557 is an equidigital number, since it uses as much as digits as its factorization.

12926363557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 49.

The spelling of 12926363557 in words is "twelve billion, nine hundred twenty-six million, three hundred sixty-three thousand, five hundred fifty-seven".