9378488961 has 16 divisors (see below), whose sum is σ = 13902768000. Its totient is φ = 6248406384.

The previous prime is 9378488921. The next prime is 9378488963. The reversal of 9378488961 is 1698848739.

9378488961 is a `hidden beast` number, since 93 + 7 + 8 + 488 + 9 + 61 = 666.

9378488961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9378488961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9378488963) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64686 + ... + 151463.

It is an arithmetic number, because the mean of its divisors is an integer number (868923000).

Almost surely, 2^9378488961 is an apocalyptic number.

It is an amenable number.

9378488961 is a deficient number, since it is larger than the sum of its proper divisors (4524279039).

9378488961 is a wasteful number, since it uses less digits than its factorization.

9378488961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217765 (or 217759 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The square root of 9378488961 is about 96842.5988963535. The cubic root of 9378488961 is about 2108.8432044724.

The spelling of 9378488961 in words is "nine billion, three hundred seventy-eight million, four hundred eighty-eight thousand, nine hundred sixty-one".