813172051833303 has 16 divisors (see below), whose sum is σ = 1102649490581760. Its totient is φ = 532905379130496.

The previous prime is 813172051833287. The next prime is 813172051833329. The reversal of 813172051833303 is 303338150271318.

It is not a de Polignac number, because 813172051833303 - 2⁴ = 813172051833287 is a prime.

It is a super-2 number, since 2×813172051833303² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813172051333303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85728475 + ... + 94740252.

It is an arithmetic number, because the mean of its divisors is an integer number (68915593161360).

Almost surely, 2^{813172051833303} is an apocalyptic number.

813172051833303 is a deficient number, since it is larger than the sum of its proper divisors (289477438748457).

813172051833303 is a wasteful number, since it uses less digits than its factorization.

813172051833303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180494246.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 813172051833303 in words is "eight hundred thirteen trillion, one hundred seventy-two billion, fifty-one million, eight hundred thirty-three thousand, three hundred three".