7887785328 has 240 divisors, whose sum is σ = 23710482432. Its totient is φ = 2443392000.

The previous prime is 7887785299. The next prime is 7887785351. The reversal of 7887785328 is 8235877887.

It is a super-2 number, since 2×7887785328² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12994401 + ... + 12995007.

Almost surely, 2^7887785328 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 7887785328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11855241216).

7887785328 is an abundant number, since it is smaller than the sum of its proper divisors (15822697104).

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

7887785328 is a wasteful number, since it uses less digits than its factorization.

7887785328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 755 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 63.

The square root of 7887785328 is about 88813.2046938967. The cubic root of 7887785328 is about 1990.6047107143.

The spelling of 7887785328 in words is "seven billion, eight hundred eighty-seven million, seven hundred eighty-five thousand, three hundred twenty-eight".