870889090500 has 576 divisors, whose sum is σ = 3335594545920. Its totient is φ = 194879520000.

The previous prime is 870889090483. The next prime is 870889090501. The reversal of 870889090500 is 5090988078.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (870889090501) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 21214995 + ... + 21256005.

Almost surely, 2^870889090500 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 870889090500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667797272960).

870889090500 is an abundant number, since it is smaller than the sum of its proper divisors (2464705455420).

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

870889090500 is a wasteful number, since it uses less digits than its factorization.

870889090500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41074 (or 41045 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 870889090500 in words is "eight hundred seventy billion, eight hundred eighty-nine million, ninety thousand, five hundred".