871781276496 has 160 divisors (see below), whose sum is σ = 2468782737792. Its totient is φ = 263448852480.

The previous prime is 871781276467. The next prime is 871781276563. The reversal of 871781276496 is 694672187178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25980946 + ... + 26014478.

Almost surely, 2^871781276496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871781276496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234391368896).

871781276496 is an abundant number, since it is smaller than the sum of its proper divisors (1597001461296).

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

871781276496 is a wasteful number, since it uses less digits than its factorization.

871781276496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34301 (or 34295 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 66.

The spelling of 871781276496 in words is "eight hundred seventy-one billion, seven hundred eighty-one million, two hundred seventy-six thousand, four hundred ninety-six".