813430497959 has 2 divisors, whose sum is σ = 813430497960. Its totient is φ = 813430497958.

The previous prime is 813430497907. The next prime is 813430498003. The reversal of 813430497959 is 959794034318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813430497959 - 2²⁰ = 813429449383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813430497559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406715248979 + 406715248980.

It is an arithmetic number, because the mean of its divisors is an integer number (406715248980).

Almost surely, 2^813430497959 is an apocalyptic number.

813430497959 is a deficient number, since it is larger than the sum of its proper divisors (1).

813430497959 is an equidigital number, since it uses as much as digits as its factorization.

813430497959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 813430497959 in words is "eight hundred thirteen billion, four hundred thirty million, four hundred ninety-seven thousand, nine hundred fifty-nine".