813417058891 has 16 divisors (see below), whose sum is σ = 819331200000. Its totient is φ = 807523364736.

The previous prime is 813417058889. The next prime is 813417058903. The reversal of 813417058891 is 198850714318.

It is a cyclic number.

It is not a de Polignac number, because 813417058891 - 2¹ = 813417058889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813417056891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311772195 + ... + 311774803.

It is an arithmetic number, because the mean of its divisors is an integer number (51208200000).

Almost surely, 2^813417058891 is an apocalyptic number.

813417058891 is a deficient number, since it is larger than the sum of its proper divisors (5914141109).

813417058891 is a wasteful number, since it uses less digits than its factorization.

813417058891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5706.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 813417058891 in words is "eight hundred thirteen billion, four hundred seventeen million, fifty-eight thousand, eight hundred ninety-one".