13262223640397 has 2 divisors, whose sum is σ = 13262223640398. Its totient is φ = 13262223640396.

The previous prime is 13262223640301. The next prime is 13262223640411. The reversal of 13262223640397 is 79304632226231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12645463154116 + 616760486281 = 3556046^2 + 785341^2 .

It is a cyclic number.

It is not a de Polignac number, because 13262223640397 - 2²⁴ = 13262206863181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13262223640297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6631111820198 + 6631111820199.

It is an arithmetic number, because the mean of its divisors is an integer number (6631111820199).

Almost surely, 2^{13262223640397} is an apocalyptic number.

It is an amenable number.

13262223640397 is a deficient number, since it is larger than the sum of its proper divisors (1).

13262223640397 is an equidigital number, since it uses as much as digits as its factorization.

13262223640397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 50.

The spelling of 13262223640397 in words is "thirteen trillion, two hundred sixty-two billion, two hundred twenty-three million, six hundred forty thousand, three hundred ninety-seven".