9938620503 has 12 divisors (see below), whose sum is σ = 16406611728. Its totient is φ = 5679211680.

The previous prime is 9938620501. The next prime is 9938620519. The reversal of 9938620503 is 3050268399.

9938620503 is a `hidden beast` number, since 99 + 38 + 6 + 20 + 503 = 666.

It is not a de Polignac number, because 9938620503 - 2¹ = 9938620501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938620501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78877878 + ... + 78878003.

It is an arithmetic number, because the mean of its divisors is an integer number (1367217644).

Almost surely, 2^9938620503 is an apocalyptic number.

9938620503 is a deficient number, since it is larger than the sum of its proper divisors (6467991225).

9938620503 is a wasteful number, since it uses less digits than its factorization.

9938620503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157755894 (or 157755891 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 9938620503 is about 99692.6301338268. The cubic root of 9938620503 is about 2150.0177033336.

The spelling of 9938620503 in words is "nine billion, nine hundred thirty-eight million, six hundred twenty thousand, five hundred three".