812849244000 has 96 divisors (see below), whose sum is σ = 2662894162656. Its totient is φ = 216759795200.

The previous prime is 812849243989. The next prime is 812849244001. The reversal of 812849244000 is 442948218.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812849244001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33856719 + ... + 33880718.

It is an arithmetic number, because the mean of its divisors is an integer number (27738480861).

Almost surely, 2^812849244000 is an apocalyptic number.

812849244000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

812849244000 is an abundant number, since it is smaller than the sum of its proper divisors (1850044918656).

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

812849244000 is a wasteful number, since it uses less digits than its factorization.

812849244000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67737465 (or 67737447 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 812849244000 in words is "eight hundred twelve billion, eight hundred forty-nine million, two hundred forty-four thousand".