812976161783 has 2 divisors, whose sum is σ = 812976161784. Its totient is φ = 812976161782.

The previous prime is 812976161749. The next prime is 812976161791. The reversal of 812976161783 is 387161679218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812976161783 - 2¹² = 812976157687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812976161183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406488080891 + 406488080892.

It is an arithmetic number, because the mean of its divisors is an integer number (406488080892).

Almost surely, 2^812976161783 is an apocalyptic number.

812976161783 is a deficient number, since it is larger than the sum of its proper divisors (1).

812976161783 is an equidigital number, since it uses as much as digits as its factorization.

812976161783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 59.

The spelling of 812976161783 in words is "eight hundred twelve billion, nine hundred seventy-six million, one hundred sixty-one thousand, seven hundred eighty-three".