812976161761 has 8 divisors (see below), whose sum is σ = 828564539040. Its totient is φ = 797448088608.

The previous prime is 812976161749. The next prime is 812976161783. The reversal of 812976161761 is 167161679218.

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 812976161761 - 2⁵ = 812976161729 is a prime.

It is a super-2 number, since 2×812976161761² (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 (812976161731) 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, 15048811 + ... + 15102736.

It is an arithmetic number, because the mean of its divisors is an integer number (103570567380).

Almost surely, 2^812976161761 is an apocalyptic number.

It is an amenable number.

812976161761 is a deficient number, since it is larger than the sum of its proper divisors (15588377279).

812976161761 is a wasteful number, since it uses less digits than its factorization.

812976161761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30152063.

The product of its digits is 1524096, while the sum is 55.

The spelling of 812976161761 in words is "eight hundred twelve billion, nine hundred seventy-six million, one hundred sixty-one thousand, seven hundred sixty-one".