3775949549 has 2 divisors, whose sum is σ = 3775949550. Its totient is φ = 3775949548.

The previous prime is 3775949531. The next prime is 3775949557. The reversal of 3775949549 is 9459495773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3330444100 + 445505449 = 57710^2 + 21107^2 .

It is a cyclic number.

It is not a de Polignac number, because 3775949549 - 2⁸ = 3775949293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3775949491 and 3775949500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3775949519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1887974774 + 1887974775.

It is an arithmetic number, because the mean of its divisors is an integer number (1887974775).

Almost surely, 2^3775949549 is an apocalyptic number.

It is an amenable number.

3775949549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3775949549 is an equidigital number, since it uses as much as digits as its factorization.

3775949549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42865200, while the sum is 62.

The square root of 3775949549 is about 61448.7554715309. The cubic root of 3775949549 is about 1557.1916310938.

The spelling of 3775949549 in words is "three billion, seven hundred seventy-five million, nine hundred forty-nine thousand, five hundred forty-nine".