7504645642 has 16 divisors (see below), whose sum is σ = 12126392712. Its totient is φ = 3462681600.

The previous prime is 7504645639. The next prime is 7504645663. The reversal of 7504645642 is 2465464057.

It can be written as a sum of positive squares in 4 ways, for example, as 1493899801 + 6010745841 = 38651^2 + 77529^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54142 + ... + 133942.

Almost surely, 2^7504645642 is an apocalyptic number.

7504645642 is a deficient number, since it is larger than the sum of its proper divisors (4621747070).

7504645642 is a wasteful number, since it uses less digits than its factorization.

7504645642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83433.

The product of its (nonzero) digits is 806400, while the sum is 43.

The square root of 7504645642 is about 86629.3578528665. The cubic root of 7504645642 is about 1957.8378943553.

The spelling of 7504645642 in words is "seven billion, five hundred four million, six hundred forty-five thousand, six hundred forty-two".