4534221491 has 2 divisors, whose sum is σ = 4534221492. Its totient is φ = 4534221490.

The previous prime is 4534221469. The next prime is 4534221539. The reversal of 4534221491 is 1941224354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4534221491 - 2¹⁴ = 4534205107 is a prime.

It is not a weakly prime, because it can be changed into another prime (4534221421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2267110745 + 2267110746.

It is an arithmetic number, because the mean of its divisors is an integer number (2267110746).

Almost surely, 2^4534221491 is an apocalyptic number.

4534221491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4534221491 is an equidigital number, since it uses as much as digits as its factorization.

4534221491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 4534221491 is about 67336.6281528857. The cubic root of 4534221491 is about 1655.1381295980.

The spelling of 4534221491 in words is "four billion, five hundred thirty-four million, two hundred twenty-one thousand, four hundred ninety-one".