2945865290 has 16 divisors (see below), whose sum is σ = 5362138440. Its totient is φ = 1165105920.

The previous prime is 2945865233. The next prime is 2945865311. The reversal of 2945865290 is 925685492.

It can be written as a sum of positive squares in 4 ways, for example, as 2141745841 + 804119449 = 46279^2 + 28357^2 .

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 7 ways as a sum of consecutive naturals, for example, 1654091 + ... + 1655870.

Almost surely, 2^2945865290 is an apocalyptic number.

2945865290 is a deficient number, since it is larger than the sum of its proper divisors (2416273150).

2945865290 is a wasteful number, since it uses less digits than its factorization.

2945865290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310057.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 2945865290 is about 54275.8260185877. The cubic root of 2945865290 is about 1433.5217757770.

The spelling of 2945865290 in words is "two billion, nine hundred forty-five million, eight hundred sixty-five thousand, two hundred ninety".