871625538701 has 4 divisors (see below), whose sum is σ = 876844853472. Its totient is φ = 866406223932.

The previous prime is 871625538689. The next prime is 871625538737. The reversal of 871625538701 is 107835526178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 871625538701 - 2¹⁰ = 871625537677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871625538761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609657135 + ... + 2609657468.

It is an arithmetic number, because the mean of its divisors is an integer number (219211213368).

Almost surely, 2^871625538701 is an apocalyptic number.

It is an amenable number.

871625538701 is a deficient number, since it is larger than the sum of its proper divisors (5219314771).

871625538701 is a wasteful number, since it uses less digits than its factorization.

871625538701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219314770.

The product of its (nonzero) digits is 2822400, while the sum is 53.

The spelling of 871625538701 in words is "eight hundred seventy-one billion, six hundred twenty-five million, five hundred thirty-eight thousand, seven hundred one".