8794978049 has 12 divisors (see below), whose sum is σ = 10410840468. Its totient is φ = 7380399840.

The previous prime is 8794978037. The next prime is 8794978051. The reversal of 8794978049 is 9408794978.

It can be written as a sum of positive squares in 2 ways, for example, as 4385088400 + 4409889649 = 66220^2 + 66407^2 .

It is not a de Polignac number, because 8794978049 - 2¹⁶ = 8794912513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8794978249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2794034 + ... + 2797179.

It is an arithmetic number, because the mean of its divisors is an integer number (867570039).

Almost surely, 2^8794978049 is an apocalyptic number.

It is an amenable number.

8794978049 is a deficient number, since it is larger than the sum of its proper divisors (1615862419).

8794978049 is a wasteful number, since it uses less digits than its factorization.

8794978049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591248 (or 5591237 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 65.

The square root of 8794978049 is about 93781.5442877755. The cubic root of 8794978049 is about 2064.1674243513.

The spelling of 8794978049 in words is "eight billion, seven hundred ninety-four million, nine hundred seventy-eight thousand, forty-nine".