871006332602420 has 192 divisors, whose sum is σ = 2130581214720000. Its totient is φ = 292955300315136.

The previous prime is 871006332602383. The next prime is 871006332602431. The reversal of 871006332602420 is 24206233600178.

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, 968768846 + ... + 969667514.

It is an arithmetic number, because the mean of its divisors is an integer number (11096777160000).

Almost surely, 2^{871006332602420} 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 871006332602420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065290607360000).

871006332602420 is an abundant number, since it is smaller than the sum of its proper divisors (1259574882117580).

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

871006332602420 is a wasteful number, since it uses less digits than its factorization.

871006332602420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899410 (or 899408 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 871006332602420 in words is "eight hundred seventy-one trillion, six billion, three hundred thirty-two million, six hundred two thousand, four hundred twenty".