812331975683 has 4 divisors (see below), whose sum is σ = 812347373880. Its totient is φ = 812316577488.

The previous prime is 812331975629. The next prime is 812331975713. The reversal of 812331975683 is 386579133218.

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

It is a cyclic number.

It is not a de Polignac number, because 812331975683 - 2¹⁶ = 812331910147 is a prime.

It is a super-2 number, since 2×812331975683² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812381975683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7619693 + ... + 7725566.

It is an arithmetic number, because the mean of its divisors is an integer number (203086843470).

Almost surely, 2^812331975683 is an apocalyptic number.

812331975683 is a deficient number, since it is larger than the sum of its proper divisors (15398197).

812331975683 is a wasteful number, since it uses less digits than its factorization.

812331975683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15398196.

The product of its digits is 6531840, while the sum is 56.

The spelling of 812331975683 in words is "eight hundred twelve billion, three hundred thirty-one million, nine hundred seventy-five thousand, six hundred eighty-three".