14860865591993 has 2 divisors, whose sum is σ = 14860865591994. Its totient is φ = 14860865591992.

The previous prime is 14860865591981. The next prime is 14860865592043. The reversal of 14860865591993 is 39919556806841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9438240797584 + 5422624794409 = 3072172^2 + 2328653^2 .

It is an emirp because it is prime and its reverse (39919556806841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14860865591993 - 2¹⁶ = 14860865526457 is a prime.

It is a super-2 number, since 2×14860865591993² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14860865591993.

It is not a weakly prime, because it can be changed into another prime (14860825591993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7430432795996 + 7430432795997.

It is an arithmetic number, because the mean of its divisors is an integer number (7430432795997).

Almost surely, 2^{14860865591993} is an apocalyptic number.

It is an amenable number.

14860865591993 is a deficient number, since it is larger than the sum of its proper divisors (1).

14860865591993 is an equidigital number, since it uses as much as digits as its factorization.

14860865591993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 503884800, while the sum is 74.

The spelling of 14860865591993 in words is "fourteen trillion, eight hundred sixty billion, eight hundred sixty-five million, five hundred ninety-one thousand, nine hundred ninety-three".