13868274533 has 2 divisors, whose sum is σ = 13868274534. Its totient is φ = 13868274532.

The previous prime is 13868274493. The next prime is 13868274551. The reversal of 13868274533 is 33547286831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7648901764 + 6219372769 = 87458^2 + 78863^2 .

It is an emirp because it is prime and its reverse (33547286831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13868274533 - 2²² = 13864080229 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 (13868274583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6934137266 + 6934137267.

It is an arithmetic number, because the mean of its divisors is an integer number (6934137267).

Almost surely, 2^13868274533 is an apocalyptic number.

It is an amenable number.

13868274533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13868274533 is an equidigital number, since it uses as much as digits as its factorization.

13868274533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 13868274533 in words is "thirteen billion, eight hundred sixty-eight million, two hundred seventy-four thousand, five hundred thirty-three".