870189659136 has 528 divisors, whose sum is σ = 3200626316160. Its totient is φ = 221679452160.

The previous prime is 870189659039. The next prime is 870189659191. The reversal of 870189659136 is 631956981078.

870189659136 is a `hidden beast` number, since 8 + 7 + 0 + 1 + 8 + 9 + 6 + 591 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20816496 + ... + 20858256.

Almost surely, 2^870189659136 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 870189659136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600313158080).

870189659136 is an abundant number, since it is smaller than the sum of its proper divisors (2330436657024).

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

870189659136 is a wasteful number, since it uses less digits than its factorization.

870189659136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41830 (or 41809 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 870189659136 in words is "eight hundred seventy billion, one hundred eighty-nine million, six hundred fifty-nine thousand, one hundred thirty-six".