812444863467 has 8 divisors (see below), whose sum is σ = 1083342961296. Its totient is φ = 541588337312.

The previous prime is 812444863387. The next prime is 812444863493. The reversal of 812444863467 is 764368444218.

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

It is a cyclic number.

It is not a de Polignac number, because 812444863467 - 2¹⁰ = 812444862443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812444863367) 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, 10347288 + ... + 10425509.

It is an arithmetic number, because the mean of its divisors is an integer number (135417870162).

Almost surely, 2^812444863467 is an apocalyptic number.

812444863467 is a deficient number, since it is larger than the sum of its proper divisors (270898097829).

812444863467 is a wasteful number, since it uses less digits than its factorization.

812444863467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20785837.

The product of its digits is 24772608, while the sum is 57.

The spelling of 812444863467 in words is "eight hundred twelve billion, four hundred forty-four million, eight hundred sixty-three thousand, four hundred sixty-seven".