3774749557 has 4 divisors (see below), whose sum is σ = 3774983680. Its totient is φ = 3774515436.

The previous prime is 3774749549. The next prime is 3774749611. The reversal of 3774749557 is 7559474773.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3774749557 - 2³ = 3774749549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3777749557) 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 3 ways as a sum of consecutive naturals, for example, 90933 + ... + 125770.

It is an arithmetic number, because the mean of its divisors is an integer number (943745920).

Almost surely, 2^3774749557 is an apocalyptic number.

It is an amenable number.

3774749557 is a deficient number, since it is larger than the sum of its proper divisors (234123).

3774749557 is a wasteful number, since it uses less digits than its factorization.

3774749557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234122.

The product of its digits is 25930800, while the sum is 58.

The square root of 3774749557 is about 61438.9905271888. The cubic root of 3774749557 is about 1557.0266557713.

The spelling of 3774749557 in words is "three billion, seven hundred seventy-four million, seven hundred forty-nine thousand, five hundred fifty-seven".