812904470359 has 4 divisors (see below), whose sum is σ = 812945457016. Its totient is φ = 812863483704.

The previous prime is 812904470353. The next prime is 812904470429. The reversal of 812904470359 is 953074409218.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812904470359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812904470353) 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 3 ways as a sum of consecutive naturals, for example, 20463564 + ... + 20503249.

It is an arithmetic number, because the mean of its divisors is an integer number (203236364254).

Almost surely, 2^812904470359 is an apocalyptic number.

812904470359 is a deficient number, since it is larger than the sum of its proper divisors (40986657).

812904470359 is a wasteful number, since it uses less digits than its factorization.

812904470359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40986656.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 812904470359 in words is "eight hundred twelve billion, nine hundred four million, four hundred seventy thousand, three hundred fifty-nine".