7887704064 has 208 divisors, whose sum is σ = 22670066880. Its totient is φ = 2430074880.

The previous prime is 7887704063. The next prime is 7887704119. The reversal of 7887704064 is 4604077887.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 7887703998 and 7887704016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7887704063) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12742347 + ... + 12742965.

Almost surely, 2^7887704064 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 7887704064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11335033440).

7887704064 is an abundant number, since it is smaller than the sum of its proper divisors (14782362816).

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

7887704064 is a wasteful number, since it uses less digits than its factorization.

7887704064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 51.

The square root of 7887704064 is about 88812.7471931817. The cubic root of 7887704064 is about 1990.5978746147.

The spelling of 7887704064 in words is "seven billion, eight hundred eighty-seven million, seven hundred four thousand, sixty-four".