871374625642838 has 8 divisors (see below), whose sum is σ = 1309383540488088. Its totient is φ = 434913445480144.

The previous prime is 871374625642723. The next prime is 871374625642853. The reversal of 871374625642838 is 838246526473178.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386933669231 + ... + 386933671482.

It is an arithmetic number, because the mean of its divisors is an integer number (163672942561011).

Almost surely, 2^{871374625642838} is an apocalyptic number.

871374625642838 is a deficient number, since it is larger than the sum of its proper divisors (438008914845250).

871374625642838 is a wasteful number, since it uses less digits than its factorization.

871374625642838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773867341278.

The product of its digits is 2601123840, while the sum is 74.

The spelling of 871374625642838 in words is "eight hundred seventy-one trillion, three hundred seventy-four billion, six hundred twenty-five million, six hundred forty-two thousand, eight hundred thirty-eight".