2864139465 has 32 divisors (see below), whose sum is σ = 5007744000. Its totient is φ = 1386307520.

The previous prime is 2864139449. The next prime is 2864139479. The reversal of 2864139465 is 5649314682.

It is not a de Polignac number, because 2864139465 - 2⁴ = 2864139449 is a prime.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 84346 + ... + 113324.

It is an arithmetic number, because the mean of its divisors is an integer number (156492000).

Almost surely, 2^2864139465 is an apocalyptic number.

It is an amenable number.

2864139465 is a deficient number, since it is larger than the sum of its proper divisors (2143604535).

2864139465 is a wasteful number, since it uses less digits than its factorization.

2864139465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29597.

The product of its digits is 1244160, while the sum is 48.

The square root of 2864139465 is about 53517.6556381163. The cubic root of 2864139465 is about 1420.1407426789.

The spelling of 2864139465 in words is "two billion, eight hundred sixty-four million, one hundred thirty-nine thousand, four hundred sixty-five".