12400027751597 has 2 divisors, whose sum is σ = 12400027751598. Its totient is φ = 12400027751596.

The previous prime is 12400027751591. The next prime is 12400027751611. The reversal of 12400027751597 is 79515772000421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9833204010436 + 2566823741161 = 3135794^2 + 1602131^2 .

It is a cyclic number.

It is not a de Polignac number, because 12400027751597 - 2¹⁰ = 12400027750573 is a prime.

It is a super-2 number, since 2×12400027751597² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12400027751591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200013875798 + 6200013875799.

It is an arithmetic number, because the mean of its divisors is an integer number (6200013875799).

Almost surely, 2^{12400027751597} is an apocalyptic number.

It is an amenable number.

12400027751597 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400027751597 is an equidigital number, since it uses as much as digits as its factorization.

12400027751597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 12400027751597 in words is "twelve trillion, four hundred billion, twenty-seven million, seven hundred fifty-one thousand, five hundred ninety-seven".