871487672064 has 72 divisors (see below), whose sum is σ = 2319598856400. Its totient is φ = 290474508288.

The previous prime is 871487672059. The next prime is 871487672149. The reversal of 871487672064 is 460276784178.

It is a junction number, because it is equal to n+sod(n) for n = 871487671989 and 871487672007.

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, 13081912 + ... + 13148360.

Almost surely, 2^871487672064 is an apocalyptic number.

It is an amenable number.

871487672064 is an abundant number, since it is smaller than the sum of its proper divisors (1448111184336).

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

871487672064 is a wasteful number, since it uses less digits than its factorization.

871487672064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83545 (or 83531 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 60.

The spelling of 871487672064 in words is "eight hundred seventy-one billion, four hundred eighty-seven million, six hundred seventy-two thousand, sixty-four".