4618074221 has 2 divisors, whose sum is σ = 4618074222. Its totient is φ = 4618074220.

The previous prime is 4618074211. The next prime is 4618074233. The reversal of 4618074221 is 1224708164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4226430121 + 391644100 = 65011^2 + 19790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4618074221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4618074211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309037110 + 2309037111.

It is an arithmetic number, because the mean of its divisors is an integer number (2309037111).

Almost surely, 2^4618074221 is an apocalyptic number.

It is an amenable number.

4618074221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4618074221 is an equidigital number, since it uses as much as digits as its factorization.

4618074221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 4618074221 is about 67956.4141269976. The cubic root of 4618074221 is about 1665.2788623514.

The spelling of 4618074221 in words is "four billion, six hundred eighteen million, seventy-four thousand, two hundred twenty-one".