871254121641 has 8 divisors (see below), whose sum is σ = 1193068707264. Its totient is φ = 565137808560.

The previous prime is 871254121631. The next prime is 871254121697. The reversal of 871254121641 is 146121452178.

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

It is not a de Polignac number, because 871254121641 - 2¹⁴ = 871254105257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 871254121593 and 871254121602.

It is not an unprimeable number, because it can be changed into a prime (871254121601) 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, 3924568005 + ... + 3924568226.

It is an arithmetic number, because the mean of its divisors is an integer number (149133588408).

Almost surely, 2^871254121641 is an apocalyptic number.

It is an amenable number.

871254121641 is a deficient number, since it is larger than the sum of its proper divisors (321814585623).

871254121641 is a wasteful number, since it uses less digits than its factorization.

871254121641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849136271.

The product of its digits is 107520, while the sum is 42.

The spelling of 871254121641 in words is "eight hundred seventy-one billion, two hundred fifty-four million, one hundred twenty-one thousand, six hundred forty-one".