9144398934401 has 2 divisors, whose sum is σ = 9144398934402. Its totient is φ = 9144398934400.

The previous prime is 9144398934367. The next prime is 9144398934511. The reversal of 9144398934401 is 1044398934419.

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., 6579353250625 + 2565045683776 = 2565025^2 + 1601576^2 .

It is an emirp because it is prime and its reverse (1044398934419) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9144398934401 is a prime.

It is not a weakly prime, because it can be changed into another prime (9144398934701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572199467200 + 4572199467201.

It is an arithmetic number, because the mean of its divisors is an integer number (4572199467201).

Almost surely, 2^{9144398934401} is an apocalyptic number.

It is an amenable number.

9144398934401 is a deficient number, since it is larger than the sum of its proper divisors (1).

9144398934401 is an equidigital number, since it uses as much as digits as its factorization.

9144398934401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13436928, while the sum is 59.

The spelling of 9144398934401 in words is "nine trillion, one hundred forty-four billion, three hundred ninety-eight million, nine hundred thirty-four thousand, four hundred one".