13291054897 has 2 divisors, whose sum is σ = 13291054898. Its totient is φ = 13291054896.

The previous prime is 13291054871. The next prime is 13291054927. The reversal of 13291054897 is 79845019231.

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., 7604537616 + 5686517281 = 87204^2 + 75409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13291054897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13291054897.

It is not a weakly prime, because it can be changed into another prime (13291054697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645527448 + 6645527449.

It is an arithmetic number, because the mean of its divisors is an integer number (6645527449).

Almost surely, 2^13291054897 is an apocalyptic number.

It is an amenable number.

13291054897 is a deficient number, since it is larger than the sum of its proper divisors (1).

13291054897 is an equidigital number, since it uses as much as digits as its factorization.

13291054897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 13291054897 in words is "thirteen billion, two hundred ninety-one million, fifty-four thousand, eight hundred ninety-seven".