870900110920 has 128 divisors (see below), whose sum is σ = 2295100604160. Its totient is φ = 291181731840.

The previous prime is 870900110909. The next prime is 870900110929. The reversal of 870900110920 is 29011009078.

It is a self number, because there is not a number n which added to its sum of digits gives 870900110920.

It is not an unprimeable number, because it can be changed into a prime (870900110929) 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 31 ways as a sum of consecutive naturals, for example, 27731467 + ... + 27762853.

It is an arithmetic number, because the mean of its divisors is an integer number (17930473470).

Almost surely, 2^870900110920 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 870900110920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147550302080).

870900110920 is an abundant number, since it is smaller than the sum of its proper divisors (1424200493240).

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

870900110920 is a wasteful number, since it uses less digits than its factorization.

870900110920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33863 (or 33859 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

Adding to 870900110920 its reverse (29011009078), we get a palindrome (899911119998).

The spelling of 870900110920 in words is "eight hundred seventy billion, nine hundred million, one hundred ten thousand, nine hundred twenty".