2999999999 has 4 divisors (see below), whose sum is σ = 3000194064. Its totient is φ = 2999805936.

The previous prime is 2999999929. The next prime is 3000000019. The reversal of 2999999999 is 9999999992.

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 2999999999 - 2¹⁶ = 2999934463 is a prime.

It is a Duffinian number.

2999999999 is a modest number, since divided by 99999 gives 29999 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999999929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71627 + ... + 105500.

It is an arithmetic number, because the mean of its divisors is an integer number (750048516).

Almost surely, 2^2999999999 is an apocalyptic number.

2999999999 is a deficient number, since it is larger than the sum of its proper divisors (194065).

2999999999 is a wasteful number, since it uses less digits than its factorization.

2999999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194064.

The product of its digits is 774840978, while the sum is 83.

The square root of 2999999999 is about 54772.2557413879. The cubic root of 2999999999 is about 1442.2495701472.

It can be divided in two parts, 2 and 999999999, that added together give a palindrome (1000000001).

The spelling of 2999999999 in words is "two billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".