399199665283 has 2 divisors, whose sum is σ = 399199665284. Its totient is φ = 399199665282.

The previous prime is 399199665257. The next prime is 399199665307. The reversal of 399199665283 is 382566991993.

It is a strong prime.

It is an emirp because it is prime and its reverse (382566991993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 399199665283 - 2²⁵ = 399166110851 is a prime.

It is not a weakly prime, because it can be changed into another prime (399199665583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199599832641 + 199599832642.

It is an arithmetic number, because the mean of its divisors is an integer number (199599832642).

Almost surely, 2^399199665283 is an apocalyptic number.

399199665283 is a deficient number, since it is larger than the sum of its proper divisors (1).

399199665283 is an equidigital number, since it uses as much as digits as its factorization.

399199665283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170061120, while the sum is 70.

The spelling of 399199665283 in words is "three hundred ninety-nine billion, one hundred ninety-nine million, six hundred sixty-five thousand, two hundred eighty-three".