9381378144 has 24 divisors (see below), whose sum is σ = 24626117880. Its totient is φ = 3127126016.

The previous prime is 9381378119. The next prime is 9381378191. The reversal of 9381378144 is 4418731839.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 9381378093 and 9381378102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48861249 + ... + 48861440.

It is an arithmetic number, because the mean of its divisors is an integer number (1026088245).

Almost surely, 2^9381378144 is an apocalyptic number.

It is an amenable number.

9381378144 is an abundant number, since it is smaller than the sum of its proper divisors (15244739736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9381378144 is a wasteful number, since it uses less digits than its factorization.

9381378144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97722702 (or 97722694 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 9381378144 is about 96857.5146490968. The cubic root of 9381378144 is about 2109.0597357425.

The spelling of 9381378144 in words is "nine billion, three hundred eighty-one million, three hundred seventy-eight thousand, one hundred forty-four".