4043942477 has 2 divisors, whose sum is σ = 4043942478. Its totient is φ = 4043942476.

The previous prime is 4043942459. The next prime is 4043942503. The reversal of 4043942477 is 7742493404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2260907401 + 1783035076 = 47549^2 + 42226^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043942477 - 2²² = 4039748173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4043942437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021971238 + 2021971239.

It is an arithmetic number, because the mean of its divisors is an integer number (2021971239).

Almost surely, 2^4043942477 is an apocalyptic number.

It is an amenable number.

4043942477 is a deficient number, since it is larger than the sum of its proper divisors (1).

4043942477 is an equidigital number, since it uses as much as digits as its factorization.

4043942477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 44.

The square root of 4043942477 is about 63592.0001022141. Note that the first 3 decimals coincide. The cubic root of 4043942477 is about 1593.1927561599.

The spelling of 4043942477 in words is "four billion, forty-three million, nine hundred forty-two thousand, four hundred seventy-seven".