3840681673 has 2 divisors, whose sum is σ = 3840681674. Its totient is φ = 3840681672.

The previous prime is 3840681661. The next prime is 3840681721. The reversal of 3840681673 is 3761860483.

3840681673 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 can be written as a sum of positive squares in only one way, i.e., 3801092409 + 39589264 = 61653^2 + 6292^2 .

It is a cyclic number.

It is not a de Polignac number, because 3840681673 - 2¹⁷ = 3840550601 is a prime.

It is a super-3 number, since 3×3840681673³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3840681643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920340836 + 1920340837.

It is an arithmetic number, because the mean of its divisors is an integer number (1920340837).

Almost surely, 2^3840681673 is an apocalyptic number.

It is an amenable number.

3840681673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840681673 is an equidigital number, since it uses as much as digits as its factorization.

3840681673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 3840681673 is about 61973.2335206095. The cubic root of 3840681673 is about 1566.0397127756.

The spelling of 3840681673 in words is "three billion, eight hundred forty million, six hundred eighty-one thousand, six hundred seventy-three".