1284081253219 has 2 divisors, whose sum is σ = 1284081253220. Its totient is φ = 1284081253218.

The previous prime is 1284081253181. The next prime is 1284081253223. The reversal of 1284081253219 is 9123521804821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1284081253219 - 2¹⁷ = 1284081122147 is a prime.

It is a super-2 number, since 2×1284081253219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1284081257219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642040626609 + 642040626610.

It is an arithmetic number, because the mean of its divisors is an integer number (642040626610).

Almost surely, 2^{1284081253219} is an apocalyptic number.

1284081253219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284081253219 is an equidigital number, since it uses as much as digits as its factorization.

1284081253219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 1284081253219 in words is "one trillion, two hundred eighty-four billion, eighty-one million, two hundred fifty-three thousand, two hundred nineteen".