4221426497 has 2 divisors, whose sum is σ = 4221426498. Its totient is φ = 4221426496.

The previous prime is 4221426439. The next prime is 4221426529. The reversal of 4221426497 is 7946241224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3542511361 + 678915136 = 59519^2 + 26056^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221426497 - 2⁸ = 4221426241 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221426427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110713248 + 2110713249.

It is an arithmetic number, because the mean of its divisors is an integer number (2110713249).

Almost surely, 2^4221426497 is an apocalyptic number.

It is an amenable number.

4221426497 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221426497 is an equidigital number, since it uses as much as digits as its factorization.

4221426497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 4221426497 is about 64972.5057004884. The cubic root of 4221426497 is about 1616.1676542036.

The spelling of 4221426497 in words is "four billion, two hundred twenty-one million, four hundred twenty-six thousand, four hundred ninety-seven".