813332816463 has 16 divisors (see below), whose sum is σ = 1110183329376. Its totient is φ = 529499174400.

The previous prime is 813332816459. The next prime is 813332816497. The reversal of 813332816463 is 364618233318.

It is not a de Polignac number, because 813332816463 - 2² = 813332816459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813332812463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18363270 + ... + 18407507.

It is an arithmetic number, because the mean of its divisors is an integer number (69386458086).

Almost surely, 2^813332816463 is an apocalyptic number.

813332816463 is a deficient number, since it is larger than the sum of its proper divisors (296850512913).

813332816463 is a wasteful number, since it uses less digits than its factorization.

813332816463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36770954.

The product of its digits is 1492992, while the sum is 48.

The spelling of 813332816463 in words is "eight hundred thirteen billion, three hundred thirty-two million, eight hundred sixteen thousand, four hundred sixty-three".