871013594421 has 12 divisors (see below), whose sum is σ = 1324348155520. Its totient is φ = 550113849000.

The previous prime is 871013594387. The next prime is 871013594449. The reversal of 871013594421 is 124495310178.

871013594421 is a `hidden beast` number, since 8 + 7 + 1 + 0 + 13 + 594 + 42 + 1 = 666.

It is not a de Polignac number, because 871013594421 - 2⁶ = 871013594357 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 (871013594221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2546823205 + ... + 2546823546.

Almost surely, 2^871013594421 is an apocalyptic number.

It is an amenable number.

871013594421 is a deficient number, since it is larger than the sum of its proper divisors (453334561099).

871013594421 is a wasteful number, since it uses less digits than its factorization.

871013594421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093646776 (or 5093646773 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 871013594421 in words is "eight hundred seventy-one billion, thirteen million, five hundred ninety-four thousand, four hundred twenty-one".