190992543841 has 16 divisors (see below), whose sum is σ = 211640286528. Its totient is φ = 170901964800.

The previous prime is 190992543821. The next prime is 190992543887. The reversal of 190992543841 is 148345299091.

It is a happy number.

It is the 178416-th star number.

It is a cyclic number.

It is not a de Polignac number, because 190992543841 - 2²³ = 190984155233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190992543821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152065 + ... + 636481.

It is an arithmetic number, because the mean of its divisors is an integer number (13227517908).

Almost surely, 2^190992543841 is an apocalyptic number.

190992543841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

190992543841 is a deficient number, since it is larger than the sum of its proper divisors (20647742687).

190992543841 is a wasteful number, since it uses less digits than its factorization.

190992543841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484992.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 190992543841 in words is "one hundred ninety billion, nine hundred ninety-two million, five hundred forty-three thousand, eight hundred forty-one".