4646664427 has 2 divisors, whose sum is σ = 4646664428. Its totient is φ = 4646664426.

The previous prime is 4646664397. The next prime is 4646664487. The reversal of 4646664427 is 7244666464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4646664427 - 2²³ = 4638275819 is a prime.

It is not a weakly prime, because it can be changed into another prime (4646664487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2323332213 + 2323332214.

It is an arithmetic number, because the mean of its divisors is an integer number (2323332214).

Almost surely, 2^4646664427 is an apocalyptic number.

4646664427 is a deficient number, since it is larger than the sum of its proper divisors (1).

4646664427 is an equidigital number, since it uses as much as digits as its factorization.

4646664427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 49.

The square root of 4646664427 is about 68166.4464894570. The cubic root of 4646664427 is about 1668.7083402712.

The spelling of 4646664427 in words is "four billion, six hundred forty-six million, six hundred sixty-four thousand, four hundred twenty-seven".