17849495846851 has 2 divisors, whose sum is σ = 17849495846852. Its totient is φ = 17849495846850.

The previous prime is 17849495846761. The next prime is 17849495846863. The reversal of 17849495846851 is 15864859494871.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17849495846851 - 2⁹ = 17849495846339 is a prime.

It is not a weakly prime, because it can be changed into another prime (17849495846051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8924747923425 + 8924747923426.

It is an arithmetic number, because the mean of its divisors is an integer number (8924747923426).

Almost surely, 2^{17849495846851} is an apocalyptic number.

17849495846851 is a deficient number, since it is larger than the sum of its proper divisors (1).

17849495846851 is an equidigital number, since it uses as much as digits as its factorization.

17849495846851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2786918400, while the sum is 79.

The spelling of 17849495846851 in words is "seventeen trillion, eight hundred forty-nine billion, four hundred ninety-five million, eight hundred forty-six thousand, eight hundred fifty-one".