9139066784 has 24 divisors (see below), whose sum is σ = 18005063328. Its totient is φ = 4566352320.

The previous prime is 9139066691. The next prime is 9139066789. The reversal of 9139066784 is 4876609319.

It is a super-3 number, since 3×9139066784³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9139066789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52382 + ... + 144989.

It is an arithmetic number, because the mean of its divisors is an integer number (750210972).

Almost surely, 2^9139066784 is an apocalyptic number.

It is an amenable number.

9139066784 is a deficient number, since it is larger than the sum of its proper divisors (8865996544).

9139066784 is a wasteful number, since it uses less digits than its factorization.

9139066784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198828 (or 198820 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 9139066784 is about 95598.4664312143. The cubic root of 9139066784 is about 2090.7428343205.

The spelling of 9139066784 in words is "nine billion, one hundred thirty-nine million, sixty-six thousand, seven hundred eighty-four".