2778573426 has 8 divisors (see below), whose sum is σ = 5557146864. Its totient is φ = 926191140.

The previous prime is 2778573383. The next prime is 2778573451. The reversal of 2778573426 is 6243758772.

It is a sphenic number, since it is the product of 3 distinct primes.

2778573426 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231547780 + ... + 231547791.

It is an arithmetic number, because the mean of its divisors is an integer number (694643358).

Almost surely, 2^2778573426 is an apocalyptic number.

2778573426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2778573426 is a wasteful number, since it uses less digits than its factorization.

2778573426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463095576.

The product of its digits is 3951360, while the sum is 51.

The square root of 2778573426 is about 52712.1753108331. The cubic root of 2778573426 is about 1405.8553111639.

The spelling of 2778573426 in words is "two billion, seven hundred seventy-eight million, five hundred seventy-three thousand, four hundred twenty-six".