71628834205 has 8 divisors (see below), whose sum is σ = 88727330304. Its totient is φ = 55454581200.

The previous prime is 71628834187. The next prime is 71628834209. The reversal of 71628834205 is 50243882617.

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

It is not a de Polignac number, because 71628834205 - 2¹³ = 71628826013 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 (71628834209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231060601 + ... + 231060910.

It is an arithmetic number, because the mean of its divisors is an integer number (11090916288).

Almost surely, 2^71628834205 is an apocalyptic number.

It is an amenable number.

71628834205 is a deficient number, since it is larger than the sum of its proper divisors (17098496099).

71628834205 is a wasteful number, since it uses less digits than its factorization.

71628834205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462121547.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 71628834205 in words is "seventy-one billion, six hundred twenty-eight million, eight hundred thirty-four thousand, two hundred five".