2864656273 has 4 divisors (see below), whose sum is σ = 2899170288. Its totient is φ = 2830142260.

The previous prime is 2864656271. The next prime is 2864656297. The reversal of 2864656273 is 3726564682.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3726564682 = 2 ⋅1863282341.

It is a cyclic number.

It is not a de Polignac number, because 2864656273 - 2¹ = 2864656271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864656271) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17256883 + ... + 17257048.

It is an arithmetic number, because the mean of its divisors is an integer number (724792572).

Almost surely, 2^2864656273 is an apocalyptic number.

It is an amenable number.

2864656273 is a deficient number, since it is larger than the sum of its proper divisors (34514015).

2864656273 is an equidigital number, since it uses as much as digits as its factorization.

2864656273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34514014.

The product of its digits is 2903040, while the sum is 49.

The square root of 2864656273 is about 53522.4838082091. The cubic root of 2864656273 is about 1420.2261547158.

The spelling of 2864656273 in words is "two billion, eight hundred sixty-four million, six hundred fifty-six thousand, two hundred seventy-three".