975965071691 has 2 divisors, whose sum is σ = 975965071692. Its totient is φ = 975965071690.

The previous prime is 975965071619. The next prime is 975965071733. The reversal of 975965071691 is 196170569579.

Together with previous prime (975965071619) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (196170569579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975965071691 - 2¹⁰ = 975965070667 is a prime.

It is not a weakly prime, because it can be changed into another prime (975965071591) 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, 487982535845 + 487982535846.

It is an arithmetic number, because the mean of its divisors is an integer number (487982535846).

Almost surely, 2^975965071691 is an apocalyptic number.

975965071691 is a deficient number, since it is larger than the sum of its proper divisors (1).

975965071691 is an equidigital number, since it uses as much as digits as its factorization.

975965071691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32148900, while the sum is 65.

The spelling of 975965071691 in words is "nine hundred seventy-five billion, nine hundred sixty-five million, seventy-one thousand, six hundred ninety-one".