7522731108 has 18 divisors (see below), whose sum is σ = 19015792614. Its totient is φ = 2507577024.

The previous prime is 7522731107. The next prime is 7522731133. The reversal of 7522731108 is 8011372257.

It can be written as a sum of positive squares in only one way, i.e., 7043909184 + 478821924 = 83928^2 + 21882^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 208964753 = 7522731108 / (7 + 5 + 2 + 2 + 7 + 3 + 1 + 1 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (7522731107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104482341 + ... + 104482412.

It is an arithmetic number, because the mean of its divisors is an integer number (1056432923).

Almost surely, 2^7522731108 is an apocalyptic number.

It is an amenable number.

7522731108 is an abundant number, since it is smaller than the sum of its proper divisors (11493061506).

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

7522731108 is a wasteful number, since it uses less digits than its factorization.

7522731108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208964763 (or 208964758 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 7522731108 is about 86733.6792024874. The cubic root of 7522731108 is about 1959.4093656267.

The spelling of 7522731108 in words is "seven billion, five hundred twenty-two million, seven hundred thirty-one thousand, one hundred eight".