4418078897 has 2 divisors, whose sum is σ = 4418078898. Its totient is φ = 4418078896.

The previous prime is 4418078893. The next prime is 4418078923. The reversal of 4418078897 is 7988708144.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4016517376 + 401561521 = 63376^2 + 20039^2 .

It is a cyclic number.

It is not a de Polignac number, because 4418078897 - 2² = 4418078893 is a prime.

It is a super-2 number, since 2×4418078897² = 39038842280233473218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4418078893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2209039448 + 2209039449.

It is an arithmetic number, because the mean of its divisors is an integer number (2209039449).

Almost surely, 2^4418078897 is an apocalyptic number.

It is an amenable number.

4418078897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4418078897 is an equidigital number, since it uses as much as digits as its factorization.

4418078897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The square root of 4418078897 is about 66468.6309246700. The cubic root of 4418078897 is about 1640.8837811632.

The spelling of 4418078897 in words is "four billion, four hundred eighteen million, seventy-eight thousand, eight hundred ninety-seven".