1994048259893 has 2 divisors, whose sum is σ = 1994048259894. Its totient is φ = 1994048259892.

The previous prime is 1994048259859. The next prime is 1994048259899. The reversal of 1994048259893 is 3989528404991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1178859577009 + 815188682884 = 1085753^2 + 902878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1994048259893 - 2¹⁸ = 1994047997749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1994048259899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997024129946 + 997024129947.

It is an arithmetic number, because the mean of its divisors is an integer number (997024129947).

Almost surely, 2^{1994048259893} is an apocalyptic number.

It is an amenable number.

1994048259893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994048259893 is an equidigital number, since it uses as much as digits as its factorization.

1994048259893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201553920, while the sum is 71.

The spelling of 1994048259893 in words is "one trillion, nine hundred ninety-four billion, forty-eight million, two hundred fifty-nine thousand, eight hundred ninety-three".