813445556711 has 2 divisors, whose sum is σ = 813445556712. Its totient is φ = 813445556710.

The previous prime is 813445556669. The next prime is 813445556767. The reversal of 813445556711 is 117655544318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813445556711 - 2³⁴ = 796265687527 is a prime.

It is a super-3 number, since 3×813445556711³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 813445556711.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813445556411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406722778355 + 406722778356.

It is an arithmetic number, because the mean of its divisors is an integer number (406722778356).

Almost surely, 2^813445556711 is an apocalyptic number.

813445556711 is a deficient number, since it is larger than the sum of its proper divisors (1).

813445556711 is an equidigital number, since it uses as much as digits as its factorization.

813445556711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016000, while the sum is 50.

The spelling of 813445556711 in words is "eight hundred thirteen billion, four hundred forty-five million, five hundred fifty-six thousand, seven hundred eleven".