190001590643 has 8 divisors (see below), whose sum is σ = 190198568448. Its totient is φ = 189804672904.

The previous prime is 190001590633. The next prime is 190001590673. The reversal of 190001590643 is 346095100091.

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 190001590643 - 2⁴ = 190001590627 is a prime.

It is a super-2 number, since 2×190001590643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190001590597 and 190001590606.

It is not an unprimeable number, because it can be changed into a prime (190001590613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8975930 + ... + 8997072.

It is an arithmetic number, because the mean of its divisors is an integer number (23774821056).

Almost surely, 2^190001590643 is an apocalyptic number.

190001590643 is a deficient number, since it is larger than the sum of its proper divisors (196977805).

190001590643 is a wasteful number, since it uses less digits than its factorization.

190001590643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30033.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 190001590643 in words is "one hundred ninety billion, one million, five hundred ninety thousand, six hundred forty-three".