871028268438647 has 8 divisors (see below), whose sum is σ = 950215265955072. Its totient is φ = 791841705835000.

The previous prime is 871028268438599. The next prime is 871028268438659. The reversal of 871028268438647 is 746834862820178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 871028268438647 - 2⁴⁸ = 589553291727991 is a prime.

It is a super-3 number, since 3×871028268438647³ (a number of 46 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871028268438667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104533553 + ... + 112558074.

It is an arithmetic number, because the mean of its divisors is an integer number (118776908244384).

Almost surely, 2^{871028268438647} is an apocalyptic number.

871028268438647 is a deficient number, since it is larger than the sum of its proper divisors (79186997516425).

871028268438647 is a wasteful number, since it uses less digits than its factorization.

871028268438647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217456389.

The product of its (nonzero) digits is 1387266048, while the sum is 74.

The spelling of 871028268438647 in words is "eight hundred seventy-one trillion, twenty-eight billion, two hundred sixty-eight million, four hundred thirty-eight thousand, six hundred forty-seven".