871524427028 has 24 divisors (see below), whose sum is σ = 1566553401000. Its totient is φ = 423940220928.

The previous prime is 871524426973. The next prime is 871524427031. The reversal of 871524427028 is 820724425178.

It can be written as a sum of positive squares in 4 ways, for example, as 2952618244 + 868571808784 = 54338^2 + 931972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122908 + ... + 1733196.

It is an arithmetic number, because the mean of its divisors is an integer number (65273058375).

Almost surely, 2^871524427028 is an apocalyptic number.

It is an amenable number.

871524427028 is a deficient number, since it is larger than the sum of its proper divisors (695028973972).

871524427028 is a wasteful number, since it uses less digits than its factorization.

871524427028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619979 (or 619977 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 50.

The spelling of 871524427028 in words is "eight hundred seventy-one billion, five hundred twenty-four million, four hundred twenty-seven thousand, twenty-eight".