7881600000 has 264 divisors, whose sum is σ = 26289473616. Its totient is φ = 2099200000.

The previous prime is 7881599963. The next prime is 7881600011. The reversal of 7881600000 is 61887.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9599590 + ... + 9600410.

Almost surely, 2^7881600000 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 7881600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13144736808).

7881600000 is an abundant number, since it is smaller than the sum of its proper divisors (18407873616).

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

7881600000 is an frugal number, since it uses more digits than its factorization.

7881600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 7881600000 is about 88778.3757454483. The cubic root of 7881600000 is about 1990.0842535643.

Adding to 7881600000 its reverse (61887), we get a palindrome (7881661887).

The spelling of 7881600000 in words is "seven billion, eight hundred eighty-one million, six hundred thousand".