284741666591 has 2 divisors, whose sum is σ = 284741666592. Its totient is φ = 284741666590.

The previous prime is 284741666567. The next prime is 284741666707. The reversal of 284741666591 is 195666147482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 284741666591 - 2⁶ = 284741666527 is a prime.

It is a super-2 number, since 2×284741666591² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 284741666591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284741666501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142370833295 + 142370833296.

It is an arithmetic number, because the mean of its divisors is an integer number (142370833296).

Almost surely, 2^284741666591 is an apocalyptic number.

284741666591 is a deficient number, since it is larger than the sum of its proper divisors (1).

284741666591 is an equidigital number, since it uses as much as digits as its factorization.

284741666591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 59.

The spelling of 284741666591 in words is "two hundred eighty-four billion, seven hundred forty-one million, six hundred sixty-six thousand, five hundred ninety-one".