9539720412 has 24 divisors (see below), whose sum is σ = 23430892800. Its totient is φ = 3012543216.

The previous prime is 9539720369. The next prime is 9539720417. The reversal of 9539720412 is 2140279359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9539720417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20920212 + ... + 20920667.

It is an arithmetic number, because the mean of its divisors is an integer number (976287200).

Almost surely, 2^9539720412 is an apocalyptic number.

It is an amenable number.

9539720412 is an abundant number, since it is smaller than the sum of its proper divisors (13891172388).

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

9539720412 is a wasteful number, since it uses less digits than its factorization.

9539720412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41840905 (or 41840903 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 9539720412 is about 97671.4923199190. The cubic root of 9539720412 is about 2120.8594186741.

The spelling of 9539720412 in words is "nine billion, five hundred thirty-nine million, seven hundred twenty thousand, four hundred twelve".