194085987549 has 32 divisors (see below), whose sum is σ = 275165320320. Its totient is φ = 121264238592.

The previous prime is 194085987527. The next prime is 194085987551. The reversal of 194085987549 is 945789580491.

194085987549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194085987549 - 2¹² = 194085983453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194085987049) 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 31 ways as a sum of consecutive naturals, for example, 12614149 + ... + 12629525.

It is an arithmetic number, because the mean of its divisors is an integer number (8598916260).

Almost surely, 2^194085987549 is an apocalyptic number.

It is an amenable number.

194085987549 is a deficient number, since it is larger than the sum of its proper divisors (81079332771).

194085987549 is a wasteful number, since it uses less digits than its factorization.

194085987549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16429.

The product of its (nonzero) digits is 130636800, while the sum is 69.

The spelling of 194085987549 in words is "one hundred ninety-four billion, eighty-five million, nine hundred eighty-seven thousand, five hundred forty-nine".