2569773842 has 12 divisors (see below), whose sum is σ = 3872332266. Its totient is φ = 1279001280.

The previous prime is 2569773827. The next prime is 2569773889. The reversal of 2569773842 is 2483779652.

It can be written as a sum of positive squares in 3 ways, for example, as 2541268921 + 28504921 = 50411^2 + 5339^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111784 + ... + 1114092.

Almost surely, 2^2569773842 is an apocalyptic number.

2569773842 is a deficient number, since it is larger than the sum of its proper divisors (1302558424).

2569773842 is an frugal number, since it uses more digits than its factorization.

2569773842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861 (or 2552 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 53.

The square root of 2569773842 is about 50692.9368058312. The cubic root of 2569773842 is about 1369.7194875624.

The spelling of 2569773842 in words is "two billion, five hundred sixty-nine million, seven hundred seventy-three thousand, eight hundred forty-two".