9529781242 has 16 divisors (see below), whose sum is σ = 14558220000. Its totient is φ = 4677355440.

The previous prime is 9529781221. The next prime is 9529781251. The reversal of 9529781242 is 2421879259.

It is a happy number.

9529781242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 17392 + ... + 139147.

It is an arithmetic number, because the mean of its divisors is an integer number (909888750).

Almost surely, 2^9529781242 is an apocalyptic number.

9529781242 is a deficient number, since it is larger than the sum of its proper divisors (5028438758).

9529781242 is a wasteful number, since it uses less digits than its factorization.

9529781242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157101.

The product of its digits is 725760, while the sum is 49.

The square root of 9529781242 is about 97620.5984513514. The cubic root of 9529781242 is about 2120.1226078668.

The spelling of 9529781242 in words is "nine billion, five hundred twenty-nine million, seven hundred eighty-one thousand, two hundred forty-two".