813458863807 has 2 divisors, whose sum is σ = 813458863808. Its totient is φ = 813458863806.

The previous prime is 813458863799. The next prime is 813458863829. The reversal of 813458863807 is 708368854318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813458863807 - 2³ = 813458863799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813458833807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406729431903 + 406729431904.

It is an arithmetic number, because the mean of its divisors is an integer number (406729431904).

Almost surely, 2^813458863807 is an apocalyptic number.

813458863807 is a deficient number, since it is larger than the sum of its proper divisors (1).

813458863807 is an equidigital number, since it uses as much as digits as its factorization.

813458863807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 813458863807 in words is "eight hundred thirteen billion, four hundred fifty-eight million, eight hundred sixty-three thousand, eight hundred seven".