4646025821 has 2 divisors, whose sum is σ = 4646025822. Its totient is φ = 4646025820.

The previous prime is 4646025817. The next prime is 4646025851. The reversal of 4646025821 is 1285206464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4402322500 + 243703321 = 66350^2 + 15611^2 .

It is a cyclic number.

It is not a de Polignac number, because 4646025821 - 2² = 4646025817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4646025851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2323012910 + 2323012911.

It is an arithmetic number, because the mean of its divisors is an integer number (2323012911).

Almost surely, 2^4646025821 is an apocalyptic number.

It is an amenable number.

4646025821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4646025821 is an equidigital number, since it uses as much as digits as its factorization.

4646025821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 4646025821 is about 68161.7621617869. The cubic root of 4646025821 is about 1668.6318914552.

The spelling of 4646025821 in words is "four billion, six hundred forty-six million, twenty-five thousand, eight hundred twenty-one".