13490856293 has 2 divisors, whose sum is σ = 13490856294. Its totient is φ = 13490856292.

The previous prime is 13490856259. The next prime is 13490856341. The reversal of 13490856293 is 39265809431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8452411969 + 5038444324 = 91937^2 + 70982^2 .

It is a cyclic number.

It is not a de Polignac number, because 13490856293 - 2¹⁰ = 13490855269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13490856893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6745428146 + 6745428147.

It is an arithmetic number, because the mean of its divisors is an integer number (6745428147).

Almost surely, 2^13490856293 is an apocalyptic number.

It is an amenable number.

13490856293 is a deficient number, since it is larger than the sum of its proper divisors (1).

13490856293 is an equidigital number, since it uses as much as digits as its factorization.

13490856293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 13490856293 in words is "thirteen billion, four hundred ninety million, eight hundred fifty-six thousand, two hundred ninety-three".