285675816487 has 2 divisors, whose sum is σ = 285675816488. Its totient is φ = 285675816486.

The previous prime is 285675816443. The next prime is 285675816521. The reversal of 285675816487 is 784618576582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285675816487 is a prime.

It is a super-2 number, since 2×285675816487² (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 (285675813487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142837908243 + 142837908244.

It is an arithmetic number, because the mean of its divisors is an integer number (142837908244).

Almost surely, 2^285675816487 is an apocalyptic number.

285675816487 is a deficient number, since it is larger than the sum of its proper divisors (1).

285675816487 is an equidigital number, since it uses as much as digits as its factorization.

285675816487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180633600, while the sum is 67.

The spelling of 285675816487 in words is "two hundred eighty-five billion, six hundred seventy-five million, eight hundred sixteen thousand, four hundred eighty-seven".