2945872273 has 4 divisors (see below), whose sum is σ = 2962329840. Its totient is φ = 2929414708.

The previous prime is 2945872261. The next prime is 2945872277. The reversal of 2945872273 is 3722785492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2945872273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2945872277) 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, 8228515 + ... + 8228872.

It is an arithmetic number, because the mean of its divisors is an integer number (740582460).

Almost surely, 2^2945872273 is an apocalyptic number.

It is an amenable number.

2945872273 is a deficient number, since it is larger than the sum of its proper divisors (16457567).

2945872273 is a wasteful number, since it uses less digits than its factorization.

2945872273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16457566.

The product of its digits is 1693440, while the sum is 49.

The square root of 2945872273 is about 54275.8903473725. The cubic root of 2945872273 is about 1433.5229084690.

The spelling of 2945872273 in words is "two billion, nine hundred forty-five million, eight hundred seventy-two thousand, two hundred seventy-three".