887799997788 has 96 divisors (see below), whose sum is σ = 2284744250880. Its totient is φ = 266073120000.

The previous prime is 887799997729. The next prime is 887799997789.

887799997788 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 887799997695 and 887799997704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887799997789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12215878 + ... + 12288338.

It is an arithmetic number, because the mean of its divisors is an integer number (23799419280).

Almost surely, 2^887799997788 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 887799997788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142372125440).

887799997788 is an abundant number, since it is smaller than the sum of its proper divisors (1396944253092).

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

887799997788 is a wasteful number, since it uses less digits than its factorization.

887799997788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73499 (or 73497 counting only the distinct ones).

The product of its digits is 64524128256, while the sum is 96.

The spelling of 887799997788 in words is "eight hundred eighty-seven billion, seven hundred ninety-nine million, nine hundred ninety-seven thousand, seven hundred eighty-eight".