7987996250 has 60 divisors (see below), whose sum is σ = 16213470966. Its totient is φ = 2949336000.

The previous prime is 7987996243. The next prime is 7987996279. The reversal of 7987996250 is 526997897.

It can be written as a sum of positive squares in 15 ways, for example, as 7883486521 + 104509729 = 88789^2 + 10223^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 192344 + ... + 230156.

Almost surely, 2^7987996250 is an apocalyptic number.

7987996250 is an abundant number, since it is smaller than the sum of its proper divisors (8225474716).

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

7987996250 is a wasteful number, since it uses less digits than its factorization.

7987996250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37861 (or 37833 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 62.

The square root of 7987996250 is about 89375.5909071375. The cubic root of 7987996250 is about 1998.9991867700. Note that the first 3 decimals are identical.

The spelling of 7987996250 in words is "seven billion, nine hundred eighty-seven million, nine hundred ninety-six thousand, two hundred fifty".