2578867274 has 4 divisors (see below), whose sum is σ = 3868300914. Its totient is φ = 1289433636.

The previous prime is 2578867267. The next prime is 2578867289. The reversal of 2578867274 is 4727688752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1891641049 + 687226225 = 43493^2 + 26215^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644716817 + ... + 644716820.

Almost surely, 2^2578867274 is an apocalyptic number.

2578867274 is a deficient number, since it is larger than the sum of its proper divisors (1289433640).

2578867274 is a wasteful number, since it uses less digits than its factorization.

2578867274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289433639.

The product of its digits is 10536960, while the sum is 56.

The square root of 2578867274 is about 50782.5489120032. The cubic root of 2578867274 is about 1371.3332207713. Note that the first 3 decimals are identical.

The spelling of 2578867274 in words is "two billion, five hundred seventy-eight million, eight hundred sixty-seven thousand, two hundred seventy-four".