9047778489 has 10 divisors (see below), whose sum is σ = 13515817370. Its totient is φ = 6031852272.

The previous prime is 9047778419. The next prime is 9047778491. The reversal of 9047778489 is 9848777409.

It is a happy number.

9047778489 is a `hidden beast` number, since 9 + 0 + 477 + 7 + 84 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7407528489 + 1640250000 = 86067^2 + 40500^2 .

It is not a de Polignac number, because 9047778489 - 2²⁵ = 9014224057 is a prime.

It is a super-2 number, since 2×9047778489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9047778419) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 55850404 + ... + 55850565.

It is an arithmetic number, because the mean of its divisors is an integer number (1351581737).

Almost surely, 2^9047778489 is an apocalyptic number.

It is an amenable number.

9047778489 is a deficient number, since it is larger than the sum of its proper divisors (4468038881).

9047778489 is a wasteful number, since it uses less digits than its factorization.

9047778489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111700981 (or 111700972 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The square root of 9047778489 is about 95119.8112329918. The cubic root of 9047778489 is about 2083.7581901966.

The spelling of 9047778489 in words is "nine billion, forty-seven million, seven hundred seventy-eight thousand, four hundred eighty-nine".