1894119987668 has 24 divisors (see below), whose sum is σ = 3510426693312. Its totient is φ = 891164226944.

The previous prime is 1894119987649. The next prime is 1894119987691. The reversal of 1894119987668 is 8667899114981.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2583896 + ... + 3234927.

It is an arithmetic number, because the mean of its divisors is an integer number (146267778888).

Almost surely, 2^{1894119987668} is an apocalyptic number.

It is an amenable number.

1894119987668 is a deficient number, since it is larger than the sum of its proper divisors (1616306705644).

1894119987668 is a wasteful number, since it uses less digits than its factorization.

1894119987668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823631 (or 5823629 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 77.

The spelling of 1894119987668 in words is "one trillion, eight hundred ninety-four billion, one hundred nineteen million, nine hundred eighty-seven thousand, six hundred sixty-eight".