969608471657491 has 2 divisors, whose sum is σ = 969608471657492. Its totient is φ = 969608471657490.

The previous prime is 969608471657479. The next prime is 969608471657549. The reversal of 969608471657491 is 194756174806969.

It is a weak prime.

It is an emirp because it is prime and its reverse (194756174806969) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 969608471657491 - 2⁷ = 969608471657363 is a prime.

It is not a weakly prime, because it can be changed into another prime (969608471657471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484804235828745 + 484804235828746.

It is an arithmetic number, because the mean of its divisors is an integer number (484804235828746).

Almost surely, 2^{969608471657491} is an apocalyptic number.

969608471657491 is a deficient number, since it is larger than the sum of its proper divisors (1).

969608471657491 is an equidigital number, since it uses as much as digits as its factorization.

969608471657491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4938071040, while the sum is 82.

The spelling of 969608471657491 in words is "nine hundred sixty-nine trillion, six hundred eight billion, four hundred seventy-one million, six hundred fifty-seven thousand, four hundred ninety-one".