9994788419 has 16 divisors (see below), whose sum is σ = 12463238400. Its totient is φ = 7786769760.

The previous prime is 9994788403. The next prime is 9994788457. The reversal of 9994788419 is 9148874999.

It is not a de Polignac number, because 9994788419 - 2⁴ = 9994788403 is a prime.

It is a super-2 number, since 2×9994788419² (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 (9994788319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771197 + ... + 784049.

It is an arithmetic number, because the mean of its divisors is an integer number (778952400).

Almost surely, 2^9994788419 is an apocalyptic number.

9994788419 is a deficient number, since it is larger than the sum of its proper divisors (2468449981).

9994788419 is a wasteful number, since it uses less digits than its factorization.

9994788419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22970.

The product of its digits is 47029248, while the sum is 68.

The square root of 9994788419 is about 99973.9386990430. The cubic root of 9994788419 is about 2154.0603579657.

The spelling of 9994788419 in words is "nine billion, nine hundred ninety-four million, seven hundred eighty-eight thousand, four hundred nineteen".