4646140561 has 2 divisors, whose sum is σ = 4646140562. Its totient is φ = 4646140560.

The previous prime is 4646140559. The next prime is 4646140571. The reversal of 4646140561 is 1650416464.

4646140561 is digitally balanced in base 3, 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., 4573140625 + 72999936 = 67625^2 + 8544^2 .

It is a cyclic number.

It is not a de Polignac number, because 4646140561 - 2¹ = 4646140559 is a prime.

It is a super-2 number, since 2×4646140561² = 43173244225138789442, which contains 22 as substring.

Together with 4646140559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4646140561.

It is not a weakly prime, because it can be changed into another prime (4646140571) 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, 2323070280 + 2323070281.

It is an arithmetic number, because the mean of its divisors is an integer number (2323070281).

Almost surely, 2^4646140561 is an apocalyptic number.

It is an amenable number.

4646140561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4646140561 is an equidigital number, since it uses as much as digits as its factorization.

4646140561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 4646140561 is about 68162.6038308397. The cubic root of 4646140561 is about 1668.6456277290.

The spelling of 4646140561 in words is "four billion, six hundred forty-six million, one hundred forty thousand, five hundred sixty-one".