813407317427 has 2 divisors, whose sum is σ = 813407317428. Its totient is φ = 813407317426.

The previous prime is 813407317367. The next prime is 813407317433. The reversal of 813407317427 is 724713704318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813407317427 - 2³⁶ = 744687840691 is a prime.

It is not a weakly prime, because it can be changed into another prime (813407317447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406703658713 + 406703658714.

It is an arithmetic number, because the mean of its divisors is an integer number (406703658714).

Almost surely, 2^813407317427 is an apocalyptic number.

813407317427 is a deficient number, since it is larger than the sum of its proper divisors (1).

813407317427 is an equidigital number, since it uses as much as digits as its factorization.

813407317427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 813407317427 in words is "eight hundred thirteen billion, four hundred seven million, three hundred seventeen thousand, four hundred twenty-seven".