12694551350357 has 2 divisors, whose sum is σ = 12694551350358. Its totient is φ = 12694551350356.

The previous prime is 12694551350333. The next prime is 12694551350401. The reversal of 12694551350357 is 75305315549621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11442314257201 + 1252237093156 = 3382649^2 + 1119034^2 .

It is an emirp because it is prime and its reverse (75305315549621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12694551350357 - 2²⁰ = 12694550301781 is a prime.

It is a super-2 number, since 2×12694551350357² (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 (12694551320357) 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, 6347275675178 + 6347275675179.

It is an arithmetic number, because the mean of its divisors is an integer number (6347275675179).

Almost surely, 2^{12694551350357} is an apocalyptic number.

It is an amenable number.

12694551350357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12694551350357 is an equidigital number, since it uses as much as digits as its factorization.

12694551350357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010000, while the sum is 56.

Adding to 12694551350357 its reverse (75305315549621), we get a palindrome (87999866899978).

The spelling of 12694551350357 in words is "twelve trillion, six hundred ninety-four billion, five hundred fifty-one million, three hundred fifty thousand, three hundred fifty-seven".