9994774999 has 4 divisors (see below), whose sum is σ = 10903390920. Its totient is φ = 9086159080.

The previous prime is 9994774969. The next prime is 9994775003.

9994774999 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9994774999 - 2⁷ = 9994774871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994774939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454307944 + ... + 454307965.

It is an arithmetic number, because the mean of its divisors is an integer number (2725847730).

Almost surely, 2^9994774999 is an apocalyptic number.

9994774999 is a deficient number, since it is larger than the sum of its proper divisors (908615921).

9994774999 is a wasteful number, since it uses less digits than its factorization.

9994774999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908615920.

The product of its digits is 416649744, while the sum is 76.

The square root of 9994774999 is about 99973.8715815287. The cubic root of 9994774999 is about 2154.0593938799.

The spelling of 9994774999 in words is "nine billion, nine hundred ninety-four million, seven hundred seventy-four thousand, nine hundred ninety-nine".