7542479522 has 8 divisors (see below), whose sum is σ = 11979232236. Its totient is φ = 3549402112.

The previous prime is 7542479519. The next prime is 7542479551. The reversal of 7542479522 is 2259742457.

It can be written as a sum of positive squares in 2 ways, for example, as 7131971401 + 410508121 = 84451^2 + 20261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110918783 + ... + 110918850.

Almost surely, 2^7542479522 is an apocalyptic number.

7542479522 is a deficient number, since it is larger than the sum of its proper divisors (4436752714).

7542479522 is a wasteful number, since it uses less digits than its factorization.

7542479522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221837652.

The product of its digits is 1411200, while the sum is 47.

The square root of 7542479522 is about 86847.4497150031. The cubic root of 7542479522 is about 1961.1224587233.

The spelling of 7542479522 in words is "seven billion, five hundred forty-two million, four hundred seventy-nine thousand, five hundred twenty-two".