9914448809 has 2 divisors, whose sum is σ = 9914448810. Its totient is φ = 9914448808.

The previous prime is 9914448779. The next prime is 9914448821. The reversal of 9914448809 is 9088444199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9869826409 + 44622400 = 99347^2 + 6680^2 .

It is a cyclic number.

It is not a de Polignac number, because 9914448809 - 2²⁴ = 9897671593 is a prime.

It is not a weakly prime, because it can be changed into another prime (9914448829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4957224404 + 4957224405.

It is an arithmetic number, because the mean of its divisors is an integer number (4957224405).

Almost surely, 2^9914448809 is an apocalyptic number.

It is an amenable number.

9914448809 is a deficient number, since it is larger than the sum of its proper divisors (1).

9914448809 is an equidigital number, since it uses as much as digits as its factorization.

9914448809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 9914448809 is about 99571.3252347281. The cubic root of 9914448809 is about 2148.2732708036.

The spelling of 9914448809 in words is "nine billion, nine hundred fourteen million, four hundred forty-eight thousand, eight hundred nine".