9938540526 has 32 divisors (see below), whose sum is σ = 20590588800. Its totient is φ = 3194241120.

The previous prime is 9938540519. The next prime is 9938540537. The reversal of 9938540526 is 6250458399.

It is a congruent number.

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, 89941 + ... + 167231.

It is an arithmetic number, because the mean of its divisors is an integer number (643455900).

Almost surely, 2^9938540526 is an apocalyptic number.

9938540526 is an abundant number, since it is smaller than the sum of its proper divisors (10652048274).

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

9938540526 is a wasteful number, since it uses less digits than its factorization.

9938540526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78064.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The square root of 9938540526 is about 99692.2290151043. The cubic root of 9938540526 is about 2150.0119361876.

The spelling of 9938540526 in words is "nine billion, nine hundred thirty-eight million, five hundred forty thousand, five hundred twenty-six".