7887995136 has 360 divisors, whose sum is σ = 27763602944. Its totient is φ = 2179768320.

The previous prime is 7887995119. The next prime is 7887995149. The reversal of 7887995136 is 6315997887.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 4498836 + ... + 4500588.

Almost surely, 2^7887995136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7887995136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13881801472).

7887995136 is an abundant number, since it is smaller than the sum of its proper divisors (19875607808).

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

7887995136 is a wasteful number, since it uses less digits than its factorization.

7887995136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1796 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The square root of 7887995136 is about 88814.3858617510. The cubic root of 7887995136 is about 1990.6223599898.

The spelling of 7887995136 in words is "seven billion, eight hundred eighty-seven million, nine hundred ninety-five thousand, one hundred thirty-six".