190945043568 has 240 divisors, whose sum is σ = 562956825600. Its totient is φ = 60300979200.

The previous prime is 190945043557. The next prime is 190945043593. The reversal of 190945043568 is 865340549091.

190945043568 is a `hidden beast` number, since 1 + 90 + 9 + 450 + 43 + 5 + 68 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185203213 + ... + 185204243.

It is an arithmetic number, because the mean of its divisors is an integer number (2345653440).

Almost surely, 2^190945043568 is an apocalyptic number.

190945043568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190945043568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281478412800).

190945043568 is an abundant number, since it is smaller than the sum of its proper divisors (372011782032).

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

190945043568 is a wasteful number, since it uses less digits than its factorization.

190945043568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 190945043568 in words is "one hundred ninety billion, nine hundred forty-five million, forty-three thousand, five hundred sixty-eight".