2064387899 has 4 divisors (see below), whose sum is σ = 2359300464. Its totient is φ = 1769475336.

The previous prime is 2064387889. The next prime is 2064387901. The reversal of 2064387899 is 9987834602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2064387899 - 2¹² = 2064383803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2064387859) 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 3 ways as a sum of consecutive naturals, for example, 147456272 + ... + 147456285.

It is an arithmetic number, because the mean of its divisors is an integer number (589825116).

Almost surely, 2^2064387899 is an apocalyptic number.

2064387899 is a deficient number, since it is larger than the sum of its proper divisors (294912565).

2064387899 is an equidigital number, since it uses as much as digits as its factorization.

2064387899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294912564.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The square root of 2064387899 is about 45435.5356411697. The cubic root of 2064387899 is about 1273.2991081521.

The spelling of 2064387899 in words is "two billion, sixty-four million, three hundred eighty-seven thousand, eight hundred ninety-nine".