871488225790 has 64 divisors (see below), whose sum is σ = 1942242914304. Its totient is φ = 274160043648.

The previous prime is 871488225767. The next prime is 871488225833. The reversal of 871488225790 is 97522884178.

It is a super-2 number, since 2×871488225790² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2715334 + ... + 3019273.

It is an arithmetic number, because the mean of its divisors is an integer number (30347545536).

Almost surely, 2^871488225790 is an apocalyptic number.

871488225790 is an abundant number, since it is smaller than the sum of its proper divisors (1070754688514).

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

871488225790 is a wasteful number, since it uses less digits than its factorization.

871488225790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5734801.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 871488225790 in words is "eight hundred seventy-one billion, four hundred eighty-eight million, two hundred twenty-five thousand, seven hundred ninety".