2011890593 has 8 divisors (see below), whose sum is σ = 2052167016. Its totient is φ = 1971849600.

The previous prime is 2011890571. The next prime is 2011890599. The reversal of 2011890593 is 3950981102.

It can be written as a sum of positive squares in 4 ways, for example, as 99840064 + 1912050529 = 9992^2 + 43727^2 .

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 2011890593 - 2²⁸ = 1743455137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011890599) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41546 + ... + 75827.

It is an arithmetic number, because the mean of its divisors is an integer number (256520877).

Almost surely, 2^2011890593 is an apocalyptic number.

It is an amenable number.

2011890593 is a deficient number, since it is larger than the sum of its proper divisors (40276423).

2011890593 is a wasteful number, since it uses less digits than its factorization.

2011890593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117715.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 2011890593 is about 44854.1034131773. The cubic root of 2011890593 is about 1262.4129860364.

The spelling of 2011890593 in words is "two billion, eleven million, eight hundred ninety thousand, five hundred ninety-three".