4640177461 has 2 divisors, whose sum is σ = 4640177462. Its totient is φ = 4640177460.

The previous prime is 4640177459. The next prime is 4640177471. The reversal of 4640177461 is 1647710464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2927459236 + 1712718225 = 54106^2 + 41385^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640177461 - 2¹ = 4640177459 is a prime.

Together with 4640177459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4640177471) 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, 2320088730 + 2320088731.

It is an arithmetic number, because the mean of its divisors is an integer number (2320088731).

Almost surely, 2^4640177461 is an apocalyptic number.

It is an amenable number.

4640177461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640177461 is an equidigital number, since it uses as much as digits as its factorization.

4640177461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 4640177461 is about 68118.8480598432. The cubic root of 4640177461 is about 1667.9314463877.

The spelling of 4640177461 in words is "four billion, six hundred forty million, one hundred seventy-seven thousand, four hundred sixty-one".