813325032673 has 8 divisors (see below), whose sum is σ = 856862748320. Its totient is φ = 769860430560.

The previous prime is 813325032581. The next prime is 813325032733. The reversal of 813325032673 is 376230523318.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-813325032673 is a prime.

It is a super-2 number, since 2×813325032673² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813325032973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18255540 + ... + 18300037.

It is an arithmetic number, because the mean of its divisors is an integer number (107107843540).

Almost surely, 2^813325032673 is an apocalyptic number.

It is an amenable number.

813325032673 is a deficient number, since it is larger than the sum of its proper divisors (43537715647).

813325032673 is a wasteful number, since it uses less digits than its factorization.

813325032673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36556767.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 813325032673 in words is "eight hundred thirteen billion, three hundred twenty-five million, thirty-two thousand, six hundred seventy-three".