863396927977 has 2 divisors, whose sum is σ = 863396927978. Its totient is φ = 863396927976.

The previous prime is 863396927957. The next prime is 863396928071. The reversal of 863396927977 is 779729693368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 863070728256 + 326199721 = 929016^2 + 18061^2 .

It is a cyclic number.

It is not a de Polignac number, because 863396927977 - 2¹¹ = 863396925929 is a prime.

It is not a weakly prime, because it can be changed into another prime (863396927927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431698463988 + 431698463989.

It is an arithmetic number, because the mean of its divisors is an integer number (431698463989).

Almost surely, 2^863396927977 is an apocalyptic number.

It is an amenable number.

863396927977 is a deficient number, since it is larger than the sum of its proper divisors (1).

863396927977 is an equidigital number, since it uses as much as digits as its factorization.

863396927977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296243648, while the sum is 76.

The spelling of 863396927977 in words is "eight hundred sixty-three billion, three hundred ninety-six million, nine hundred twenty-seven thousand, nine hundred seventy-seven".