4644541973 has 2 divisors, whose sum is σ = 4644541974. Its totient is φ = 4644541972.

The previous prime is 4644541943. The next prime is 4644541997. The reversal of 4644541973 is 3791454464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4597111204 + 47430769 = 67802^2 + 6887^2 .

It is a cyclic number.

It is not a de Polignac number, because 4644541973 - 2¹⁶ = 4644476437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4644541903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322270986 + 2322270987.

It is an arithmetic number, because the mean of its divisors is an integer number (2322270987).

Almost surely, 2^4644541973 is an apocalyptic number.

It is an amenable number.

4644541973 is a deficient number, since it is larger than the sum of its proper divisors (1).

4644541973 is an equidigital number, since it uses as much as digits as its factorization.

4644541973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The square root of 4644541973 is about 68150.8765387504. The cubic root of 4644541973 is about 1668.4542299562.

The spelling of 4644541973 in words is "four billion, six hundred forty-four million, five hundred forty-one thousand, nine hundred seventy-three".