812976161782 has 8 divisors (see below), whose sum is σ = 1239455459952. Its totient is φ = 399824341800.

The previous prime is 812976161749. The next prime is 812976161783. The reversal of 812976161782 is 287161679218.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812976161783) 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, 3331869394 + ... + 3331869637.

It is an arithmetic number, because the mean of its divisors is an integer number (154931932494).

Almost surely, 2^812976161782 is an apocalyptic number.

812976161782 is a deficient number, since it is larger than the sum of its proper divisors (426479298170).

812976161782 is a wasteful number, since it uses less digits than its factorization.

812976161782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6663739094.

The product of its digits is 4064256, while the sum is 58.

The spelling of 812976161782 in words is "eight hundred twelve billion, nine hundred seventy-six million, one hundred sixty-one thousand, seven hundred eighty-two".