2063891005 has 16 divisors (see below), whose sum is σ = 2767722048. Its totient is φ = 1464400000.

The previous prime is 2063890957. The next prime is 2063891021. The reversal of 2063891005 is 5001983602.

It is not a de Polignac number, because 2063891005 - 2¹³ = 2063882813 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 455371 + ... + 459880.

It is an arithmetic number, because the mean of its divisors is an integer number (172982628).

Almost surely, 2^2063891005 is an apocalyptic number.

It is an amenable number.

2063891005 is a deficient number, since it is larger than the sum of its proper divisors (703831043).

2063891005 is a wasteful number, since it uses less digits than its factorization.

2063891005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915308.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 2063891005 is about 45430.0671912336. The cubic root of 2063891005 is about 1273.1969397794.

The spelling of 2063891005 in words is "two billion, sixty-three million, eight hundred ninety-one thousand, five".