871839804407 has 32 divisors (see below), whose sum is σ = 1037861959680. Its totient is φ = 721919157120.

The previous prime is 871839804397. The next prime is 871839804487. The reversal of 871839804407 is 704408938178.

It is a cyclic number.

It is not a de Polignac number, because 871839804407 - 2⁴ = 871839804391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871839804487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9795098 + ... + 9883704.

It is an arithmetic number, because the mean of its divisors is an integer number (32433186240).

Almost surely, 2^871839804407 is an apocalyptic number.

871839804407 is a deficient number, since it is larger than the sum of its proper divisors (166022155273).

871839804407 is a wasteful number, since it uses less digits than its factorization.

871839804407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89543.

The product of its (nonzero) digits is 10838016, while the sum is 59.

The spelling of 871839804407 in words is "eight hundred seventy-one billion, eight hundred thirty-nine million, eight hundred four thousand, four hundred seven".