2781334738 has 48 divisors (see below), whose sum is σ = 5216641920. Its totient is φ = 1088875008.

The previous prime is 2781334613. The next prime is 2781334739. The reversal of 2781334738 is 8374331872.

It is a super-3 number, since 3×2781334738³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2781334739) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 223443 + ... + 235561.

It is an arithmetic number, because the mean of its divisors is an integer number (108680040).

Almost surely, 2^2781334738 is an apocalyptic number.

2781334738 is a deficient number, since it is larger than the sum of its proper divisors (2435307182).

2781334738 is a wasteful number, since it uses less digits than its factorization.

2781334738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12251 (or 12238 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 2781334738 is about 52738.3611614923. The cubic root of 2781334738 is about 1406.3208642005.

The spelling of 2781334738 in words is "two billion, seven hundred eighty-one million, three hundred thirty-four thousand, seven hundred thirty-eight".