870013090128 has 320 divisors, whose sum is σ = 2810007148032. Its totient is φ = 225833287680.

The previous prime is 870013090099. The next prime is 870013090151. The reversal of 870013090128 is 821090310078.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166125526 + ... + 166130762.

Almost surely, 2^870013090128 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 870013090128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405003574016).

870013090128 is an abundant number, since it is smaller than the sum of its proper divisors (1939994057904).

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

870013090128 is a wasteful number, since it uses less digits than its factorization.

870013090128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862 (or 5856 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 870013090128 in words is "eight hundred seventy billion, thirteen million, ninety thousand, one hundred twenty-eight".