71871813884045 has 16 divisors (see below), whose sum is σ = 104365121338368. Its totient is φ = 46384498371840.

The previous prime is 71871813884033. The next prime is 71871813884077. The reversal of 71871813884045 is 54048831817817.

It is not a de Polignac number, because 71871813884045 - 2⁴ = 71871813884029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60396481661 + ... + 60396482850.

It is an arithmetic number, because the mean of its divisors is an integer number (6522820083648).

Almost surely, 2^{71871813884045} is an apocalyptic number.

It is an amenable number.

71871813884045 is a deficient number, since it is larger than the sum of its proper divisors (32493307454323).

71871813884045 is a wasteful number, since it uses less digits than its factorization.

71871813884045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120792964540.

The product of its (nonzero) digits is 48168960, while the sum is 65.

The spelling of 71871813884045 in words is "seventy-one trillion, eight hundred seventy-one billion, eight hundred thirteen million, eight hundred eighty-four thousand, forty-five".