8369999638 has 32 divisors (see below), whose sum is σ = 16857066240. Its totient is φ = 3010188960.

The previous prime is 8369999629. The next prime is 8369999663.

8369999638 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088408 + ... + 2092411.

It is an arithmetic number, because the mean of its divisors is an integer number (526783320).

Almost surely, 2^8369999638 is an apocalyptic number.

8369999638 is an abundant number, since it is smaller than the sum of its proper divisors (8487066602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8369999638 is a wasteful number, since it uses less digits than its factorization.

8369999638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180852.

The product of its digits is 136048896, while the sum is 70.

The square root of 8369999638 is about 91487.7021134535. The cubic root of 8369999638 is about 2030.3698063611.

The spelling of 8369999638 in words is "eight billion, three hundred sixty-nine million, nine hundred ninety-nine thousand, six hundred thirty-eight".