1838986841694 has 32 divisors (see below), whose sum is σ = 3714267700224. Its totient is φ = 606957563520.

The previous prime is 1838986841693. The next prime is 1838986841719. The reversal of 1838986841694 is 4961486898381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838986841693) 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 in 15 ways as a sum of consecutive naturals, for example, 696604 + ... + 2040399.

It is an arithmetic number, because the mean of its divisors is an integer number (116070865632).

Almost surely, 2^{1838986841694} is an apocalyptic number.

1838986841694 is an abundant number, since it is smaller than the sum of its proper divisors (1875280858530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1838986841694 is a wasteful number, since it uses less digits than its factorization.

1838986841694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738112.

The product of its digits is 573308928, while the sum is 75.

The spelling of 1838986841694 in words is "one trillion, eight hundred thirty-eight billion, nine hundred eighty-six million, eight hundred forty-one thousand, six hundred ninety-four".