3775740643 has 2 divisors, whose sum is σ = 3775740644. Its totient is φ = 3775740642.

The previous prime is 3775740623. The next prime is 3775740677. The reversal of 3775740643 is 3460475773.

3775740643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3775740643 - 2⁵ = 3775740611 is a prime.

It is a super-4 number, since 4×3775740643⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a junction number, because it is equal to n+sod(n) for n = 3775740593 and 3775740602.

It is not a weakly prime, because it can be changed into another prime (3775740623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1887870321 + 1887870322.

It is an arithmetic number, because the mean of its divisors is an integer number (1887870322).

Almost surely, 2^3775740643 is an apocalyptic number.

3775740643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3775740643 is an equidigital number, since it uses as much as digits as its factorization.

3775740643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 46.

The square root of 3775740643 is about 61447.0556088736. The cubic root of 3775740643 is about 1557.1629131364.

It can be divided in two parts, 37757 and 40643, that added together give a square (78400 = 280²).

The spelling of 3775740643 in words is "three billion, seven hundred seventy-five million, seven hundred forty thousand, six hundred forty-three".