2781788274 has 24 divisors (see below), whose sum is σ = 6039306000. Its totient is φ = 925401528.

The previous prime is 2781788267. The next prime is 2781788287. The reversal of 2781788274 is 4728871872.

It is a self number, because there is not a number n which added to its sum of digits gives 2781788274.

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 11 ways as a sum of consecutive naturals, for example, 145872 + ... + 163835.

It is an arithmetic number, because the mean of its divisors is an integer number (251637750).

Almost surely, 2^2781788274 is an apocalyptic number.

2781788274 is an abundant number, since it is smaller than the sum of its proper divisors (3257517726).

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

2781788274 is a wasteful number, since it uses less digits than its factorization.

2781788274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310214 (or 310211 counting only the distinct ones).

The product of its digits is 2809856, while the sum is 54.

The square root of 2781788274 is about 52742.6608543786. The cubic root of 2781788274 is about 1406.3973002206.

The spelling of 2781788274 in words is "two billion, seven hundred eighty-one million, seven hundred eighty-eight thousand, two hundred seventy-four".