12694551350401 has 2 divisors, whose sum is σ = 12694551350402. Its totient is φ = 12694551350400.

The previous prime is 12694551350357. The next prime is 12694551350449. The reversal of 12694551350401 is 10405315549621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12322206090000 + 372345260401 = 3510300^2 + 610201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12694551350401 is a prime.

It is a super-2 number, since 2×12694551350401² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12694551356401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6347275675200 + 6347275675201.

It is an arithmetic number, because the mean of its divisors is an integer number (6347275675201).

Almost surely, 2^{12694551350401} is an apocalyptic number.

It is an amenable number.

12694551350401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12694551350401 is an equidigital number, since it uses as much as digits as its factorization.

12694551350401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 12694551350401 in words is "twelve trillion, six hundred ninety-four billion, five hundred fifty-one million, three hundred fifty thousand, four hundred one".