887839885440 has 448 divisors, whose sum is σ = 3200361710400. Its totient is φ = 235412490240.

The previous prime is 887839885379. The next prime is 887839885447. The reversal of 887839885440 is 44588938788.

887839885440 is a `hidden beast` number, since 8 + 8 + 78 + 3 + 9 + 8 + 8 + 544 + 0 = 666.

It is a super-2 number, since 2×887839885440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (887839885447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 83508925 + ... + 83519555.

Almost surely, 2^887839885440 is an apocalyptic number.

887839885440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 887839885440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600180855200).

887839885440 is an abundant number, since it is smaller than the sum of its proper divisors (2312521824960).

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

887839885440 is a wasteful number, since it uses less digits than its factorization.

887839885440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10847 (or 10820 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 72.

The spelling of 887839885440 in words is "eight hundred eighty-seven billion, eight hundred thirty-nine million, eight hundred eighty-five thousand, four hundred forty".