9144394774 has 8 divisors (see below), whose sum is σ = 13773984480. Its totient is φ = 4553066616.

The previous prime is 9144394751. The next prime is 9144394793. The reversal of 9144394774 is 4774934419.

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

It is a super-2 number, since 2×9144394774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9564789 + ... + 9565744.

It is an arithmetic number, because the mean of its divisors is an integer number (1721748060).

Almost surely, 2^9144394774 is an apocalyptic number.

9144394774 is a deficient number, since it is larger than the sum of its proper divisors (4629589706).

9144394774 is a wasteful number, since it uses less digits than its factorization.

9144394774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19130774.

The product of its digits is 3048192, while the sum is 52.

The square root of 9144394774 is about 95626.3288744266. The cubic root of 9144394774 is about 2091.1490498618.

The spelling of 9144394774 in words is "nine billion, one hundred forty-four million, three hundred ninety-four thousand, seven hundred seventy-four".