870012079884 has 36 divisors (see below), whose sum is σ = 2201368268736. Its totient is φ = 289717732128.

The previous prime is 870012079883. The next prime is 870012079901. The reversal of 870012079884 is 488970210078.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 870012079884.

It is not an unprimeable number, because it can be changed into a prime (870012079883) 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 11 ways as a sum of consecutive naturals, for example, 11891964 + ... + 11964899.

It is an arithmetic number, because the mean of its divisors is an integer number (61149118576).

Almost surely, 2^870012079884 is an apocalyptic number.

It is an amenable number.

870012079884 is an abundant number, since it is smaller than the sum of its proper divisors (1331356188852).

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

870012079884 is a wasteful number, since it uses less digits than its factorization.

870012079884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23857886 (or 23857881 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 870012079884 in words is "eight hundred seventy billion, twelve million, seventy-nine thousand, eight hundred eighty-four".