13896345731 has 2 divisors, whose sum is σ = 13896345732. Its totient is φ = 13896345730.

The previous prime is 13896345691. The next prime is 13896345763. The reversal of 13896345731 is 13754369831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13896345731 - 2⁶ = 13896345667 is a prime.

It is a super-2 number, since 2×13896345731² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13896345731.

It is not a weakly prime, because it can be changed into another prime (13896345791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948172865 + 6948172866.

It is an arithmetic number, because the mean of its divisors is an integer number (6948172866).

Almost surely, 2^13896345731 is an apocalyptic number.

13896345731 is a deficient number, since it is larger than the sum of its proper divisors (1).

13896345731 is an equidigital number, since it uses as much as digits as its factorization.

13896345731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The spelling of 13896345731 in words is "thirteen billion, eight hundred ninety-six million, three hundred forty-five thousand, seven hundred thirty-one".