285678424697 has 12 divisors (see below), whose sum is σ = 301913757360. Its totient is φ = 270276237432.

The previous prime is 285678424667. The next prime is 285678424709. The reversal of 285678424697 is 796424876582.

It is a de Polignac number, because none of the positive numbers 2^k-285678424697 is a prime.

It is a super-2 number, since 2×285678424697² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285678424607) 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 in 11 ways as a sum of consecutive naturals, for example, 268643 + ... + 802200.

It is an arithmetic number, because the mean of its divisors is an integer number (25159479780).

Almost surely, 2^285678424697 is an apocalyptic number.

It is an amenable number.

285678424697 is a deficient number, since it is larger than the sum of its proper divisors (16235332663).

285678424697 is a wasteful number, since it uses less digits than its factorization.

285678424697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071620 (or 1071601 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 68.

The spelling of 285678424697 in words is "two hundred eighty-five billion, six hundred seventy-eight million, four hundred twenty-four thousand, six hundred ninety-seven".