870448918464 has 140 divisors (see below), whose sum is σ = 2583225646848. Its totient is φ = 289818777600.

The previous prime is 870448918433. The next prime is 870448918483. The reversal of 870448918464 is 464819844078.

870448918464 is a `hidden beast` number, since 8 + 7 + 0 + 448 + 9 + 184 + 6 + 4 = 666.

870448918464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4471809 + ... + 4662399.

Almost surely, 2^870448918464 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 870448918464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291612823424).

870448918464 is an abundant number, since it is smaller than the sum of its proper divisors (1712776728384).

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

870448918464 is a wasteful number, since it uses less digits than its factorization.

870448918464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191496 (or 191477 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 63.

The spelling of 870448918464 in words is "eight hundred seventy billion, four hundred forty-eight million, nine hundred eighteen thousand, four hundred sixty-four".