194759288446989 has 96 divisors (see below), whose sum is σ = 321660818227200. Its totient is φ = 104217372040320.

The previous prime is 194759288446979. The next prime is 194759288447041. The reversal of 194759288446989 is 989644882957491.

It is not a de Polignac number, because 194759288446989 - 2¹⁶ = 194759288381453 is a prime.

It is a super-2 number, since 2×194759288446989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194759288446939) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 95113647 + ... + 97139715.

It is an arithmetic number, because the mean of its divisors is an integer number (3350633523200).

Almost surely, 2^{194759288446989} is an apocalyptic number.

194759288446989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

194759288446989 is a deficient number, since it is larger than the sum of its proper divisors (126901529780211).

194759288446989 is a wasteful number, since it uses less digits than its factorization.

194759288446989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026503 (or 2026496 counting only the distinct ones).

The product of its digits is 90296156160, while the sum is 93.

The spelling of 194759288446989 in words is "one hundred ninety-four trillion, seven hundred fifty-nine billion, two hundred eighty-eight million, four hundred forty-six thousand, nine hundred eighty-nine".