912831286091 has 2 divisors, whose sum is σ = 912831286092. Its totient is φ = 912831286090.

The previous prime is 912831286039. The next prime is 912831286099. The reversal of 912831286091 is 190682138219.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-912831286091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (912831286099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456415643045 + 456415643046.

It is an arithmetic number, because the mean of its divisors is an integer number (456415643046).

Almost surely, 2^912831286091 is an apocalyptic number.

912831286091 is a deficient number, since it is larger than the sum of its proper divisors (1).

912831286091 is an equidigital number, since it uses as much as digits as its factorization.

912831286091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 912831286091 in words is "nine hundred twelve billion, eight hundred thirty-one million, two hundred eighty-six thousand, ninety-one".