3989190230891 has 8 divisors (see below), whose sum is σ = 4163184880800. Its totient is φ = 3815241547392.

The previous prime is 3989190230827. The next prime is 3989190230897. The reversal of 3989190230891 is 1980320919893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3989190230891 - 2⁶ = 3989190230827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989190230897) 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 7 ways as a sum of consecutive naturals, for example, 11314190 + ... + 11661443.

It is an arithmetic number, because the mean of its divisors is an integer number (520398110100).

Almost surely, 2^{3989190230891} is an apocalyptic number.

3989190230891 is a deficient number, since it is larger than the sum of its proper divisors (173994649909).

3989190230891 is a wasteful number, since it uses less digits than its factorization.

3989190230891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22983205.

The product of its (nonzero) digits is 7558272, while the sum is 62.

The spelling of 3989190230891 in words is "three trillion, nine hundred eighty-nine billion, one hundred ninety million, two hundred thirty thousand, eight hundred ninety-one".