887309878920 has 256 divisors, whose sum is σ = 2932368998400. Its totient is φ = 213814702080.

The previous prime is 887309878877. The next prime is 887309878921. The reversal of 887309878920 is 29878903788.

It is not an unprimeable number, because it can be changed into a prime (887309878921) 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 63 ways as a sum of consecutive naturals, for example, 7976241 + ... + 8086719.

It is an arithmetic number, because the mean of its divisors is an integer number (11454566400).

Almost surely, 2^887309878920 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 887309878920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466184499200).

887309878920 is an abundant number, since it is smaller than the sum of its proper divisors (2045059119480).

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

887309878920 is a wasteful number, since it uses less digits than its factorization.

887309878920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110668 (or 110664 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 69.

The spelling of 887309878920 in words is "eight hundred eighty-seven billion, three hundred nine million, eight hundred seventy-eight thousand, nine hundred twenty".