870063810660 has 288 divisors, whose sum is σ = 3116549520000. Its totient is φ = 199822775040.

The previous prime is 870063810611. The next prime is 870063810667. The reversal of 870063810660 is 66018360078.

870063810660 is a `hidden beast` number, since 8 + 7 + 0 + 0 + 638 + 1 + 0 + 6 + 6 + 0 = 666.

It is a super-2 number, since 2×870063810660² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (870063810667) 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 95 ways as a sum of consecutive naturals, for example, 1941466 + ... + 2347214.

It is an arithmetic number, because the mean of its divisors is an integer number (10821352500).

Almost surely, 2^870063810660 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 870063810660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1558274760000).

870063810660 is an abundant number, since it is smaller than the sum of its proper divisors (2246485709340).

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

870063810660 is a wasteful number, since it uses less digits than its factorization.

870063810660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405816 (or 405789 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 870063810660 in words is "eight hundred seventy billion, sixty-three million, eight hundred ten thousand, six hundred sixty".