1494816162689 has 2 divisors, whose sum is σ = 1494816162690. Its totient is φ = 1494816162688.

The previous prime is 1494816162649. The next prime is 1494816162743. The reversal of 1494816162689 is 9862616184941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749860743025 + 744955419664 = 865945^2 + 863108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1494816162689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1494816162649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747408081344 + 747408081345.

It is an arithmetic number, because the mean of its divisors is an integer number (747408081345).

Almost surely, 2^{1494816162689} is an apocalyptic number.

It is an amenable number.

1494816162689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494816162689 is an equidigital number, since it uses as much as digits as its factorization.

1494816162689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35831808, while the sum is 65.

The spelling of 1494816162689 in words is "one trillion, four hundred ninety-four billion, eight hundred sixteen million, one hundred sixty-two thousand, six hundred eighty-nine".