871726931712 has 576 divisors, whose sum is σ = 3310738421760. Its totient is φ = 219906441216.

The previous prime is 871726931671. The next prime is 871726931771. The reversal of 871726931712 is 217139627178.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×871726931712² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14436688 + ... + 14496944.

It is an arithmetic number, because the mean of its divisors is an integer number (5747809760).

Almost surely, 2^871726931712 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 871726931712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655369210880).

871726931712 is an abundant number, since it is smaller than the sum of its proper divisors (2439011490048).

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

871726931712 is a wasteful number, since it uses less digits than its factorization.

871726931712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60325 (or 60305 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The spelling of 871726931712 in words is "eight hundred seventy-one billion, seven hundred twenty-six million, nine hundred thirty-one thousand, seven hundred twelve".