9749388384 has 72 divisors (see below), whose sum is σ = 27735336720. Its totient is φ = 3248563968.

The previous prime is 9749388377. The next prime is 9749388391. The reversal of 9749388384 is 4838839479.

9749388384 is a `hidden beast` number, since 97 + 4 + 93 + 88 + 384 = 666.

It is an interprime number because it is at equal distance from previous prime (9749388377) and next prime (9749388391).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063629 + ... + 1072755.

It is an arithmetic number, because the mean of its divisors is an integer number (385213010).

Almost surely, 2^9749388384 is an apocalyptic number.

It is an amenable number.

9749388384 is an abundant number, since it is smaller than the sum of its proper divisors (17985948336).

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

9749388384 is a wasteful number, since it uses less digits than its factorization.

9749388384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12852 (or 12841 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 9749388384 is about 98738.9912040831. The cubic root of 9749388384 is about 2136.2846693779.

The spelling of 9749388384 in words is "nine billion, seven hundred forty-nine million, three hundred eighty-eight thousand, three hundred eighty-four".