12254355661693 has 2 divisors, whose sum is σ = 12254355661694. Its totient is φ = 12254355661692.

The previous prime is 12254355661687. The next prime is 12254355661697. The reversal of 12254355661693 is 39616655345221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12254179356409 + 176305284 = 3500597^2 + 13278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12254355661693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12254355661697) 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 as a sum of consecutive naturals, namely, 6127177830846 + 6127177830847.

It is an arithmetic number, because the mean of its divisors is an integer number (6127177830847).

Almost surely, 2^{12254355661693} is an apocalyptic number.

It is an amenable number.

12254355661693 is a deficient number, since it is larger than the sum of its proper divisors (1).

12254355661693 is an equidigital number, since it uses as much as digits as its factorization.

12254355661693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992000, while the sum is 58.

The spelling of 12254355661693 in words is "twelve trillion, two hundred fifty-four billion, three hundred fifty-five million, six hundred sixty-one thousand, six hundred ninety-three".