4076278561 has 2 divisors, whose sum is σ = 4076278562. Its totient is φ = 4076278560.

The previous prime is 4076278529. The next prime is 4076278597. The reversal of 4076278561 is 1658726704.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3999803536 + 76475025 = 63244^2 + 8745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4076278561 - 2⁵ = 4076278529 is a prime.

It is not a weakly prime, because it can be changed into another prime (4076278501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2038139280 + 2038139281.

It is an arithmetic number, because the mean of its divisors is an integer number (2038139281).

Almost surely, 2^4076278561 is an apocalyptic number.

It is an amenable number.

4076278561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4076278561 is an equidigital number, since it uses as much as digits as its factorization.

4076278561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 4076278561 is about 63845.7403512560. The cubic root of 4076278561 is about 1597.4279719321.

The spelling of 4076278561 in words is "four billion, seventy-six million, two hundred seventy-eight thousand, five hundred sixty-one".