2581758268 has 12 divisors (see below), whose sum is σ = 4527512640. Its totient is φ = 1288183232.

The previous prime is 2581758253. The next prime is 2581758281. The reversal of 2581758268 is 8628571852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671821 + ... + 675652.

It is an arithmetic number, because the mean of its divisors is an integer number (377292720).

Almost surely, 2^2581758268 is an apocalyptic number.

It is an amenable number.

2581758268 is a deficient number, since it is larger than the sum of its proper divisors (1945754372).

2581758268 is a wasteful number, since it uses less digits than its factorization.

2581758268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347956 (or 1347954 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 52.

The square root of 2581758268 is about 50811.0053826924. The cubic root of 2581758268 is about 1371.8454657693.

The spelling of 2581758268 in words is "two billion, five hundred eighty-one million, seven hundred fifty-eight thousand, two hundred sixty-eight".