2865793258 has 16 divisors (see below), whose sum is σ = 4564614600. Its totient is φ = 1344738816.

The previous prime is 2865793247. The next prime is 2865793303. The reversal of 2865793258 is 8523975682.

It can be written as a sum of positive squares in 4 ways, for example, as 2171839609 + 693953649 = 46603^2 + 26343^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2865793199 and 2865793208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108891 + ... + 132622.

Almost surely, 2^2865793258 is an apocalyptic number.

2865793258 is a deficient number, since it is larger than the sum of its proper divisors (1698821342).

2865793258 is a wasteful number, since it uses less digits than its factorization.

2865793258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241881.

The product of its digits is 7257600, while the sum is 55.

The square root of 2865793258 is about 53533.1043187297. The cubic root of 2865793258 is about 1420.4140262662.

The spelling of 2865793258 in words is "two billion, eight hundred sixty-five million, seven hundred ninety-three thousand, two hundred fifty-eight".