3985016351291 has 2 divisors, whose sum is σ = 3985016351292. Its totient is φ = 3985016351290.

The previous prime is 3985016351179. The next prime is 3985016351297. The reversal of 3985016351291 is 1921536105893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3985016351291 - 2¹⁸ = 3985016089147 is a prime.

It is not a weakly prime, because it can be changed into another prime (3985016351297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992508175645 + 1992508175646.

It is an arithmetic number, because the mean of its divisors is an integer number (1992508175646).

Almost surely, 2^{3985016351291} is an apocalyptic number.

3985016351291 is a deficient number, since it is larger than the sum of its proper divisors (1).

3985016351291 is an equidigital number, since it uses as much as digits as its factorization.

3985016351291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 3985016351291 in words is "three trillion, nine hundred eighty-five billion, sixteen million, three hundred fifty-one thousand, two hundred ninety-one".