4897792861691 has 2 divisors, whose sum is σ = 4897792861692. Its totient is φ = 4897792861690.

The previous prime is 4897792861669. The next prime is 4897792861697. The reversal of 4897792861691 is 1961682977984.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4897792861691 - 2¹⁴ = 4897792845307 is a prime.

It is not a weakly prime, because it can be changed into another prime (4897792861697) 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, 2448896430845 + 2448896430846.

It is an arithmetic number, because the mean of its divisors is an integer number (2448896430846).

Almost surely, 2^{4897792861691} is an apocalyptic number.

4897792861691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4897792861691 is an equidigital number, since it uses as much as digits as its factorization.

4897792861691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658409472, while the sum is 77.

The spelling of 4897792861691 in words is "four trillion, eight hundred ninety-seven billion, seven hundred ninety-two million, eight hundred sixty-one thousand, six hundred ninety-one".