13813174891 has 2 divisors, whose sum is σ = 13813174892. Its totient is φ = 13813174890.

The previous prime is 13813174877. The next prime is 13813175003. The reversal of 13813174891 is 19847131831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13813174891 - 2⁹ = 13813174379 is a prime.

It is not a weakly prime, because it can be changed into another prime (13813174801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906587445 + 6906587446.

It is an arithmetic number, because the mean of its divisors is an integer number (6906587446).

Almost surely, 2^13813174891 is an apocalyptic number.

13813174891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13813174891 is an equidigital number, since it uses as much as digits as its factorization.

13813174891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The spelling of 13813174891 in words is "thirteen billion, eight hundred thirteen million, one hundred seventy-four thousand, eight hundred ninety-one".