12986037555493 has 2 divisors, whose sum is σ = 12986037555494. Its totient is φ = 12986037555492.

The previous prime is 12986037555443. The next prime is 12986037555503. The reversal of 12986037555493 is 39455573068921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11814226975489 + 1171810580004 = 3437183^2 + 1082502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12986037555493 is a prime.

It is a super-2 number, since 2×12986037555493² (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 (12986037555443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6493018777746 + 6493018777747.

It is an arithmetic number, because the mean of its divisors is an integer number (6493018777747).

It is a 1-persistent number, because it is pandigital, but 2⋅12986037555493 = 25972075110986 is not.

Almost surely, 2^{12986037555493} is an apocalyptic number.

It is an amenable number.

12986037555493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12986037555493 is an equidigital number, since it uses as much as digits as its factorization.

12986037555493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944000, while the sum is 67.

The spelling of 12986037555493 in words is "twelve trillion, nine hundred eighty-six billion, thirty-seven million, five hundred fifty-five thousand, four hundred ninety-three".