71721627364311 has 8 divisors (see below), whose sum is σ = 95651321533680. Its totient is φ = 47803175718912.

The previous prime is 71721627364237. The next prime is 71721627364379. The reversal of 71721627364311 is 11346372612717.

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

It is not a de Polignac number, because 71721627364311 - 2⁷ = 71721627364183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71721627364111) 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, 2810616106 + ... + 2810641623.

It is an arithmetic number, because the mean of its divisors is an integer number (11956415191710).

Almost surely, 2^{71721627364311} is an apocalyptic number.

71721627364311 is a deficient number, since it is larger than the sum of its proper divisors (23929694169369).

71721627364311 is a wasteful number, since it uses less digits than its factorization.

71721627364311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621261985.

The product of its digits is 1778112, while the sum is 51.

The spelling of 71721627364311 in words is "seventy-one trillion, seven hundred twenty-one billion, six hundred twenty-seven million, three hundred sixty-four thousand, three hundred eleven".