7501625668 has 6 divisors (see below), whose sum is σ = 13127844926. Its totient is φ = 3750812832.

The previous prime is 7501625641. The next prime is 7501625707. The reversal of 7501625668 is 8665261057.

It can be written as a sum of positive squares in only one way, i.e., 6961899844 + 539725824 = 83438^2 + 23232^2 .

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 as a sum of consecutive naturals, namely, 937703205 + ... + 937703212.

Almost surely, 2^7501625668 is an apocalyptic number.

It is an amenable number.

7501625668 is a deficient number, since it is larger than the sum of its proper divisors (5626219258).

7501625668 is a wasteful number, since it uses less digits than its factorization.

7501625668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875406421 (or 1875406419 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 7501625668 is about 86611.9256684667. The cubic root of 7501625668 is about 1957.5752387016.

The spelling of 7501625668 in words is "seven billion, five hundred one million, six hundred twenty-five thousand, six hundred sixty-eight".