9157885768044 has 144 divisors (see below), whose sum is σ = 25861189626272. Its totient is φ = 2816932142592.

The previous prime is 9157885767971. The next prime is 9157885768079. The reversal of 9157885768044 is 4408675887519.

It is a happy number.

9157885768044 is a `hidden beast` number, since 9 + 1 + 5 + 7 + 8 + 8 + 576 + 8 + 0 + 44 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40993512 + ... + 41216304.

Almost surely, 2^{9157885768044} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9157885768044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12930594813136).

9157885768044 is an abundant number, since it is smaller than the sum of its proper divisors (16703303858228).

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

9157885768044 is a wasteful number, since it uses less digits than its factorization.

9157885768044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226078 (or 226064 counting only the distinct ones).

The product of its (nonzero) digits is 541900800, while the sum is 72.

The spelling of 9157885768044 in words is "nine trillion, one hundred fifty-seven billion, eight hundred eighty-five million, seven hundred sixty-eight thousand, forty-four".