3778133771 has 4 divisors (see below), whose sum is σ = 4000376952. Its totient is φ = 3555890592.

The previous prime is 3778133767. The next prime is 3778133791. The reversal of 3778133771 is 1773318773.

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

It is a cyclic number.

It is not a de Polignac number, because 3778133771 - 2² = 3778133767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3778133701) 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 3 ways as a sum of consecutive naturals, for example, 111121565 + ... + 111121598.

It is an arithmetic number, because the mean of its divisors is an integer number (1000094238).

Almost surely, 2^3778133771 is an apocalyptic number.

3778133771 is a deficient number, since it is larger than the sum of its proper divisors (222243181).

3778133771 is a wasteful number, since it uses less digits than its factorization.

3778133771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222243180.

The product of its digits is 518616, while the sum is 47.

The square root of 3778133771 is about 61466.5256135403. The cubic root of 3778133771 is about 1557.4918290140.

The spelling of 3778133771 in words is "three billion, seven hundred seventy-eight million, one hundred thirty-three thousand, seven hundred seventy-one".