7525762138 has 16 divisors (see below), whose sum is σ = 11330696520. Its totient is φ = 3748885056.

The previous prime is 7525762133. The next prime is 7525762157. The reversal of 7525762138 is 8312675257.

It can be written as a sum of positive squares in 4 ways, for example, as 6631333489 + 894428649 = 81433^2 + 29907^2 .

It is not an unprimeable number, because it can be changed into a prime (7525762133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792756 + ... + 802192.

Almost surely, 2^7525762138 is an apocalyptic number.

7525762138 is a deficient number, since it is larger than the sum of its proper divisors (3804934382).

7525762138 is a wasteful number, since it uses less digits than its factorization.

7525762138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10881.

The product of its digits is 705600, while the sum is 46.

The square root of 7525762138 is about 86751.1506436658. The cubic root of 7525762138 is about 1959.6724895294.

The spelling of 7525762138 in words is "seven billion, five hundred twenty-five million, seven hundred sixty-two thousand, one hundred thirty-eight".