285716821463 has 2 divisors, whose sum is σ = 285716821464. Its totient is φ = 285716821462.

The previous prime is 285716821451. The next prime is 285716821513. The reversal of 285716821463 is 364128617582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285716821463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285716826463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142858410731 + 142858410732.

It is an arithmetic number, because the mean of its divisors is an integer number (142858410732).

Almost surely, 2^285716821463 is an apocalyptic number.

285716821463 is a deficient number, since it is larger than the sum of its proper divisors (1).

285716821463 is an equidigital number, since it uses as much as digits as its factorization.

285716821463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 53.

The spelling of 285716821463 in words is "two hundred eighty-five billion, seven hundred sixteen million, eight hundred twenty-one thousand, four hundred sixty-three".