9989634019 has 8 divisors (see below), whose sum is σ = 10028551680. Its totient is φ = 9950740800.

The previous prime is 9989634013. The next prime is 9989634049. The reversal of 9989634019 is 9104369899.

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 9989634019 - 2¹³ = 9989625827 is a prime.

It is a super-2 number, since 2×9989634019² (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 (9989634013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589854 + ... + 1596124.

It is an arithmetic number, because the mean of its divisors is an integer number (1253568960).

Almost surely, 2^9989634019 is an apocalyptic number.

9989634019 is a deficient number, since it is larger than the sum of its proper divisors (38917661).

9989634019 is a wasteful number, since it uses less digits than its factorization.

9989634019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The square root of 9989634019 is about 99948.1566563386. The cubic root of 9989634019 is about 2153.6900050241.

The spelling of 9989634019 in words is "nine billion, nine hundred eighty-nine million, six hundred thirty-four thousand, nineteen".