2064543690 has 32 divisors (see below), whose sum is σ = 5405351616. Its totient is φ = 500495360.

The previous prime is 2064543683. The next prime is 2064543709. The reversal of 2064543690 is 963454602.

It is a super-2 number, since 2×2064543690² = 8524681295837632200, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3127767 + ... + 3128426.

It is an arithmetic number, because the mean of its divisors is an integer number (168917238).

Almost surely, 2^2064543690 is an apocalyptic number.

2064543690 is an abundant number, since it is smaller than the sum of its proper divisors (3340807926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2064543690 is a wasteful number, since it uses less digits than its factorization.

2064543690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256214.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 2064543690 is about 45437.2500268227. The cubic root of 2064543690 is about 1273.3311375899.

The spelling of 2064543690 in words is "two billion, sixty-four million, five hundred forty-three thousand, six hundred ninety".