1893939746089 has 4 divisors (see below), whose sum is σ = 1955034576640. Its totient is φ = 1832844915540.

The previous prime is 1893939746071. The next prime is 1893939746129. The reversal of 1893939746089 is 9806479393981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1893939746089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1893939746009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30547415229 + ... + 30547415290.

It is an arithmetic number, because the mean of its divisors is an integer number (488758644160).

Almost surely, 2^{1893939746089} is an apocalyptic number.

It is an amenable number.

1893939746089 is a deficient number, since it is larger than the sum of its proper divisors (61094830551).

1893939746089 is an equidigital number, since it uses as much as digits as its factorization.

1893939746089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61094830550.

The product of its (nonzero) digits is 634894848, while the sum is 76.

The spelling of 1893939746089 in words is "one trillion, eight hundred ninety-three billion, nine hundred thirty-nine million, seven hundred forty-six thousand, eighty-nine".