4421270857 has 2 divisors, whose sum is σ = 4421270858. Its totient is φ = 4421270856.

The previous prime is 4421270837. The next prime is 4421270897. The reversal of 4421270857 is 7580721244.

It is an a-pointer prime, because the next prime (4421270897) can be obtained adding 4421270857 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3540131001 + 881139856 = 59499^2 + 29684^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421270857 - 2⁷ = 4421270729 is a prime.

It is not a weakly prime, because it can be changed into another prime (4421270837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210635428 + 2210635429.

It is an arithmetic number, because the mean of its divisors is an integer number (2210635429).

Almost surely, 2^4421270857 is an apocalyptic number.

It is an amenable number.

4421270857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421270857 is an equidigital number, since it uses as much as digits as its factorization.

4421270857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 4421270857 is about 66492.6376150022. The cubic root of 4421270857 is about 1641.2788529176.

The spelling of 4421270857 in words is "four billion, four hundred twenty-one million, two hundred seventy thousand, eight hundred fifty-seven".