3778336749 has 16 divisors (see below), whose sum is σ = 5496850944. Its totient is φ = 2289447600.

The previous prime is 3778336711. The next prime is 3778336759. The reversal of 3778336749 is 9476338773.

3778336749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3778336749 - 2⁸ = 3778336493 is a prime.

It is a super-3 number, since 3×3778336749³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778336759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242962 + ... + 258044.

It is an arithmetic number, because the mean of its divisors is an integer number (343553184).

Almost surely, 2^3778336749 is an apocalyptic number.

It is an amenable number.

3778336749 is a deficient number, since it is larger than the sum of its proper divisors (1718514195).

3778336749 is a wasteful number, since it uses less digits than its factorization.

3778336749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22688.

The product of its digits is 16003008, while the sum is 57.

The square root of 3778336749 is about 61468.1767177130. The cubic root of 3778336749 is about 1557.5197202900.

The spelling of 3778336749 in words is "three billion, seven hundred seventy-eight million, three hundred thirty-six thousand, seven hundred forty-nine".