7987607712 has 72 divisors (see below), whose sum is σ = 25959731616. Its totient is φ = 2282173056.

The previous prime is 7987607699. The next prime is 7987607713. The reversal of 7987607712 is 2177067897.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (7987607713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979038 + ... + 1983069.

It is an arithmetic number, because the mean of its divisors is an integer number (360551828).

Almost surely, 2^7987607712 is an apocalyptic number.

7987607712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7987607712 is an abundant number, since it is smaller than the sum of its proper divisors (17972123904).

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

7987607712 is a wasteful number, since it uses less digits than its factorization.

7987607712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962130 (or 3962119 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 54.

The square root of 7987607712 is about 89373.4172559156. The cubic root of 7987607712 is about 1998.9667756490.

The spelling of 7987607712 in words is "seven billion, nine hundred eighty-seven million, six hundred seven thousand, seven hundred twelve".