1890983559499 has 2 divisors, whose sum is σ = 1890983559500. Its totient is φ = 1890983559498.

The previous prime is 1890983559427. The next prime is 1890983559533. The reversal of 1890983559499 is 9949553890981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1890983559499 - 2³⁵ = 1856623821131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1890983559419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945491779749 + 945491779750.

It is an arithmetic number, because the mean of its divisors is an integer number (945491779750).

Almost surely, 2^{1890983559499} is an apocalyptic number.

1890983559499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1890983559499 is an equidigital number, since it uses as much as digits as its factorization.

1890983559499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1133740800, while the sum is 79.

The spelling of 1890983559499 in words is "one trillion, eight hundred ninety billion, nine hundred eighty-three million, five hundred fifty-nine thousand, four hundred ninety-nine".