2865748045 has 4 divisors (see below), whose sum is σ = 3438897660. Its totient is φ = 2292598432.

The previous prime is 2865748031. The next prime is 2865748049. The reversal of 2865748045 is 5408475682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5408475682 = 2 ⋅2704237841.

It can be written as a sum of positive squares in 2 ways, for example, as 1157496484 + 1708251561 = 34022^2 + 41331^2 .

It is a cyclic number.

It is not a de Polignac number, because 2865748045 - 2⁷ = 2865747917 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2865748045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865748049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286574800 + ... + 286574809.

It is an arithmetic number, because the mean of its divisors is an integer number (859724415).

Almost surely, 2^2865748045 is an apocalyptic number.

It is an amenable number.

2865748045 is a deficient number, since it is larger than the sum of its proper divisors (573149615).

2865748045 is an equidigital number, since it uses as much as digits as its factorization.

2865748045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573149614.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The square root of 2865748045 is about 53532.6820269637. The cubic root of 2865748045 is about 1420.4065563720.

The spelling of 2865748045 in words is "two billion, eight hundred sixty-five million, seven hundred forty-eight thousand, forty-five".