812197164350 has 96 divisors (see below), whose sum is σ = 1775922333696. Its totient is φ = 272452118400.

The previous prime is 812197164349. The next prime is 812197164353. The reversal of 812197164350 is 53461791218.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 812197164295 and 812197164304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812197164353) 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 47 ways as a sum of consecutive naturals, for example, 11454707 + ... + 11525393.

It is an arithmetic number, because the mean of its divisors is an integer number (18499190976).

It is a 1-persistent number, because it is pandigital, but 2⋅812197164350 = 1624394328700 is not.

Almost surely, 2^812197164350 is an apocalyptic number.

812197164350 is an abundant number, since it is smaller than the sum of its proper divisors (963725169346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812197164350 is a wasteful number, since it uses less digits than its factorization.

812197164350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72330 (or 72325 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 812197164350 in words is "eight hundred twelve billion, one hundred ninety-seven million, one hundred sixty-four thousand, three hundred fifty".