2864805765 has 32 divisors (see below), whose sum is σ = 4671959040. Its totient is φ = 1498668864.

The previous prime is 2864805763. The next prime is 2864805787. The reversal of 2864805765 is 5675084682.

It is a happy number.

2864805765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2864805765 - 2¹ = 2864805763 is a prime.

It is a super-2 number, since 2×2864805765² = 16414224142354470450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864805761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234232 + ... + 246158.

It is an arithmetic number, because the mean of its divisors is an integer number (145998720).

Almost surely, 2^2864805765 is an apocalyptic number.

It is an amenable number.

2864805765 is a deficient number, since it is larger than the sum of its proper divisors (1807153275).

2864805765 is a wasteful number, since it uses less digits than its factorization.

2864805765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The square root of 2864805765 is about 53523.8803245804. The cubic root of 2864805765 is about 1420.2508591055.

The spelling of 2864805765 in words is "two billion, eight hundred sixty-four million, eight hundred five thousand, seven hundred sixty-five".