812250198837 has 192 divisors, whose sum is σ = 1560242331648. Its totient is φ = 394207488000.

The previous prime is 812250198833. The next prime is 812250198919. The reversal of 812250198837 is 738891052218.

812250198837 is a `hidden beast` number, since 8 + 1 + 22 + 501 + 9 + 88 + 37 = 666.

It is not a de Polignac number, because 812250198837 - 2² = 812250198833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812250198833) 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 191 ways as a sum of consecutive naturals, for example, 1761930787 + ... + 1761931247.

It is an arithmetic number, because the mean of its divisors is an integer number (8126262144).

Almost surely, 2^812250198837 is an apocalyptic number.

It is an amenable number.

812250198837 is a deficient number, since it is larger than the sum of its proper divisors (747992132811).

812250198837 is a wasteful number, since it uses less digits than its factorization.

812250198837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 812250198837 in words is "eight hundred twelve billion, two hundred fifty million, one hundred ninety-eight thousand, eight hundred thirty-seven".