812934617953 has 8 divisors (see below), whose sum is σ = 860775552000. Its totient is φ = 765096045120.

The previous prime is 812934617941. The next prime is 812934617977. The reversal of 812934617953 is 359716439218.

It is a happy number.

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 812934617953 - 2²⁹ = 812397747041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812934617923) 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 7 ways as a sum of consecutive naturals, for example, 144688 + ... + 1283278.

It is an arithmetic number, because the mean of its divisors is an integer number (107596944000).

Almost surely, 2^812934617953 is an apocalyptic number.

It is an amenable number.

812934617953 is a deficient number, since it is larger than the sum of its proper divisors (47840934047).

812934617953 is a wasteful number, since it uses less digits than its factorization.

812934617953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180607.

The product of its digits is 9797760, while the sum is 58.

The spelling of 812934617953 in words is "eight hundred twelve billion, nine hundred thirty-four million, six hundred seventeen thousand, nine hundred fifty-three".