813407347427 has 2 divisors, whose sum is σ = 813407347428. Its totient is φ = 813407347426.

The previous prime is 813407347369. The next prime is 813407347433. The reversal of 813407347427 is 724743704318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813407347427 - 2²⁸ = 813138911971 is a prime.

It is not a weakly prime, because it can be changed into another prime (813407317427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406703673713 + 406703673714.

It is an arithmetic number, because the mean of its divisors is an integer number (406703673714).

Almost surely, 2^813407347427 is an apocalyptic number.

813407347427 is a deficient number, since it is larger than the sum of its proper divisors (1).

813407347427 is an equidigital number, since it uses as much as digits as its factorization.

813407347427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 50.

The spelling of 813407347427 in words is "eight hundred thirteen billion, four hundred seven million, three hundred forty-seven thousand, four hundred twenty-seven".