1874683994489 has 2 divisors, whose sum is σ = 1874683994490. Its totient is φ = 1874683994488.

The previous prime is 1874683994473. The next prime is 1874683994531. The reversal of 1874683994489 is 9844993864781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1427547040000 + 447136954489 = 1194800^2 + 668683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1874683994489 - 2⁴ = 1874683994473 is a prime.

It is a super-2 number, since 2×1874683994489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1874683994789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937341997244 + 937341997245.

It is an arithmetic number, because the mean of its divisors is an integer number (937341997245).

Almost surely, 2^{1874683994489} is an apocalyptic number.

It is an amenable number.

1874683994489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874683994489 is an equidigital number, since it uses as much as digits as its factorization.

1874683994489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3009871872, while the sum is 80.

The spelling of 1874683994489 in words is "one trillion, eight hundred seventy-four billion, six hundred eighty-three million, nine hundred ninety-four thousand, four hundred eighty-nine".