4646695021 has 2 divisors, whose sum is σ = 4646695022. Its totient is φ = 4646695020.

The previous prime is 4646695013. The next prime is 4646695033. The reversal of 4646695021 is 1205966464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4223570121 + 423124900 = 64989^2 + 20570^2 .

It is a cyclic number.

It is not a de Polignac number, because 4646695021 - 2³ = 4646695013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4646695621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2323347510 + 2323347511.

It is an arithmetic number, because the mean of its divisors is an integer number (2323347511).

Almost surely, 2^4646695021 is an apocalyptic number.

It is an amenable number.

4646695021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4646695021 is an equidigital number, since it uses as much as digits as its factorization.

4646695021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 4646695021 is about 68166.6708956804. The cubic root of 4646695021 is about 1668.7120025650.

The spelling of 4646695021 in words is "four billion, six hundred forty-six million, six hundred ninety-five thousand, twenty-one".