85183316291 has 2 divisors, whose sum is σ = 85183316292. Its totient is φ = 85183316290.

The previous prime is 85183316279. The next prime is 85183316347. The reversal of 85183316291 is 19261338158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85183316291 - 2³⁰ = 84109574467 is a prime.

It is not a weakly prime, because it can be changed into another prime (85183316221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42591658145 + 42591658146.

It is an arithmetic number, because the mean of its divisors is an integer number (42591658146).

Almost surely, 2^85183316291 is an apocalyptic number.

85183316291 is a deficient number, since it is larger than the sum of its proper divisors (1).

85183316291 is an equidigital number, since it uses as much as digits as its factorization.

85183316291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The spelling of 85183316291 in words is "eighty-five billion, one hundred eighty-three million, three hundred sixteen thousand, two hundred ninety-one".