285406695983 has 2 divisors, whose sum is σ = 285406695984. Its totient is φ = 285406695982.

The previous prime is 285406695979. The next prime is 285406695997. The reversal of 285406695983 is 389596604582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285406695983 - 2² = 285406695979 is a prime.

It is a super-2 number, since 2×285406695983² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285406695913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142703347991 + 142703347992.

It is an arithmetic number, because the mean of its divisors is an integer number (142703347992).

Almost surely, 2^285406695983 is an apocalyptic number.

285406695983 is a deficient number, since it is larger than the sum of its proper divisors (1).

285406695983 is an equidigital number, since it uses as much as digits as its factorization.

285406695983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 285406695983 in words is "two hundred eighty-five billion, four hundred six million, six hundred ninety-five thousand, nine hundred eighty-three".