2865800745 has 12 divisors (see below), whose sum is σ = 4967388036. Its totient is φ = 1528427040.

The previous prime is 2865800681. The next prime is 2865800753. The reversal of 2865800745 is 5470085682.

2865800745 is a `hidden beast` number, since 28 + 6 + 580 + 0 + 7 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 602800704 + 2263000041 = 24552^2 + 47571^2 .

It is not a de Polignac number, because 2865800745 - 2⁶ = 2865800681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 63684461 = 2865800745 / (2 + 8 + 6 + 5 + 8 + 0 + 0 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2865800745.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31842186 + ... + 31842275.

It is an arithmetic number, because the mean of its divisors is an integer number (413949003).

Almost surely, 2^2865800745 is an apocalyptic number.

It is an amenable number.

2865800745 is a deficient number, since it is larger than the sum of its proper divisors (2101587291).

2865800745 is a wasteful number, since it uses less digits than its factorization.

2865800745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63684472 (or 63684469 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 2865800745 is about 53533.1742473767. The cubic root of 2865800745 is about 1420.4152632280.

The spelling of 2865800745 in words is "two billion, eight hundred sixty-five million, eight hundred thousand, seven hundred forty-five".