9539502020 has 12 divisors (see below), whose sum is σ = 20032954284. Its totient is φ = 3815800800.

The previous prime is 9539502017. The next prime is 9539502031. The reversal of 9539502020 is 202059359.

9539502020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5240601664 + 4298900356 = 72392^2 + 65566^2 .

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 3 ways as a sum of consecutive naturals, for example, 238487531 + ... + 238487570.

It is an arithmetic number, because the mean of its divisors is an integer number (1669412857).

Almost surely, 2^9539502020 is an apocalyptic number.

It is an amenable number.

9539502020 is an abundant number, since it is smaller than the sum of its proper divisors (10493452264).

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

9539502020 is a wasteful number, since it uses less digits than its factorization.

9539502020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476975110 (or 476975108 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 9539502020 is about 97670.3743209782. The cubic root of 9539502020 is about 2120.8432343331.

The spelling of 9539502020 in words is "nine billion, five hundred thirty-nine million, five hundred two thousand, twenty".