9144897745 has 8 divisors (see below), whose sum is σ = 11080420416. Its totient is φ = 7244889456.

The previous prime is 9144897743. The next prime is 9144897781. The reversal of 9144897745 is 5477984419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9144897745 - 2¹ = 9144897743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9144897745.

It is not an unprimeable number, because it can be changed into a prime (9144897743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8878027 + ... + 8879056.

It is an arithmetic number, because the mean of its divisors is an integer number (1385052552).

Almost surely, 2^9144897745 is an apocalyptic number.

It is an amenable number.

9144897745 is a deficient number, since it is larger than the sum of its proper divisors (1935522671).

9144897745 is a wasteful number, since it uses less digits than its factorization.

9144897745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17757191.

The product of its digits is 10160640, while the sum is 58.

The square root of 9144897745 is about 95628.9587154435. The cubic root of 9144897745 is about 2091.1873891240.

The spelling of 9144897745 in words is "nine billion, one hundred forty-four million, eight hundred ninety-seven thousand, seven hundred forty-five".