9144816977 has 4 divisors (see below), whose sum is σ = 9195905520. Its totient is φ = 9093728436.

The previous prime is 9144816973. The next prime is 9144817067. The reversal of 9144816977 is 7796184419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7796184419 = 37 ⋅210707687.

It is a cyclic number.

It is not a de Polignac number, because 9144816977 - 2² = 9144816973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9144816973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25544003 + ... + 25544360.

It is an arithmetic number, because the mean of its divisors is an integer number (2298976380).

Almost surely, 2^9144816977 is an apocalyptic number.

It is an amenable number.

9144816977 is a deficient number, since it is larger than the sum of its proper divisors (51088543).

9144816977 is a wasteful number, since it uses less digits than its factorization.

9144816977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51088542.

The product of its digits is 3048192, while the sum is 56.

The square root of 9144816977 is about 95628.5364156537. The cubic root of 9144816977 is about 2091.1812326301.

The spelling of 9144816977 in words is "nine billion, one hundred forty-four million, eight hundred sixteen thousand, nine hundred seventy-seven".