973382971991 has 2 divisors, whose sum is σ = 973382971992. Its totient is φ = 973382971990.

The previous prime is 973382971931. The next prime is 973382972027. The reversal of 973382971991 is 199179283379.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-973382971991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (973382971901) 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, 486691485995 + 486691485996.

It is an arithmetic number, because the mean of its divisors is an integer number (486691485996).

Almost surely, 2^973382971991 is an apocalyptic number.

973382971991 is a deficient number, since it is larger than the sum of its proper divisors (1).

973382971991 is an equidigital number, since it uses as much as digits as its factorization.

973382971991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46294416, while the sum is 68.

The spelling of 973382971991 in words is "nine hundred seventy-three billion, three hundred eighty-two million, nine hundred seventy-one thousand, nine hundred ninety-one".