9938582155 has 16 divisors (see below), whose sum is σ = 12149105760. Its totient is φ = 7802787328.

The previous prime is 9938582119. The next prime is 9938582189. The reversal of 9938582155 is 5512858399.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9938582155 - 2²⁹ = 9401711243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9938582096 and 9938582105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146529 + ... + 203341.

It is an arithmetic number, because the mean of its divisors is an integer number (759319110).

Almost surely, 2^9938582155 is an apocalyptic number.

9938582155 is a deficient number, since it is larger than the sum of its proper divisors (2210523605).

9938582155 is a wasteful number, since it uses less digits than its factorization.

9938582155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57470.

The product of its digits is 3888000, while the sum is 55.

The square root of 9938582155 is about 99692.4378024733. The cubic root of 9938582155 is about 2150.0149380610.

The spelling of 9938582155 in words is "nine billion, nine hundred thirty-eight million, five hundred eighty-two thousand, one hundred fifty-five".