9919458226389 has 8 divisors (see below), whose sum is σ = 13276233064512. Its totient is φ = 6587827769600.

The previous prime is 9919458226339. The next prime is 9919458226399. The reversal of 9919458226389 is 9836228549199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9919458226389 - 2⁹ = 9919458225877 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9919458226389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9919458226339) 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 7 ways as a sum of consecutive naturals, for example, 6286094412 + ... + 6286095989.

It is an arithmetic number, because the mean of its divisors is an integer number (1659529133064).

Almost surely, 2^{9919458226389} is an apocalyptic number.

It is an amenable number.

9919458226389 is a deficient number, since it is larger than the sum of its proper divisors (3356774838123).

9919458226389 is a wasteful number, since it uses less digits than its factorization.

9919458226389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572190667.

The product of its digits is 604661760, while the sum is 75.

The spelling of 9919458226389 in words is "nine trillion, nine hundred nineteen billion, four hundred fifty-eight million, two hundred twenty-six thousand, three hundred eighty-nine".