9938613835 has 32 divisors (see below), whose sum is σ = 12671987328. Its totient is φ = 7467356160.

The previous prime is 9938613829. The next prime is 9938613859. The reversal of 9938613835 is 5383168399.

It is a happy number.

It is not a de Polignac number, because 9938613835 - 2³ = 9938613827 is a prime.

It is a super-2 number, since 2×9938613835² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1953495 + ... + 1958575.

It is an arithmetic number, because the mean of its divisors is an integer number (395999604).

Almost surely, 2^9938613835 is an apocalyptic number.

9938613835 is a deficient number, since it is larger than the sum of its proper divisors (2733373493).

9938613835 is a wasteful number, since it uses less digits than its factorization.

9938613835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415.

The product of its digits is 4199040, while the sum is 55.

The square root of 9938613835 is about 99692.5966910282. The cubic root of 9938613835 is about 2150.0172225049.

The spelling of 9938613835 in words is "nine billion, nine hundred thirty-eight million, six hundred thirteen thousand, eight hundred thirty-five".