71998622254227 has 4 divisors (see below), whose sum is σ = 95998163005640. Its totient is φ = 47999081502816.

The previous prime is 71998622254217. The next prime is 71998622254271. The reversal of 71998622254227 is 72245222689917.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71998622254227 - 2¹⁰ = 71998622253203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71998622254217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11999770375702 + ... + 11999770375707.

It is an arithmetic number, because the mean of its divisors is an integer number (23999540751410).

Almost surely, 2^{71998622254227} is an apocalyptic number.

71998622254227 is a deficient number, since it is larger than the sum of its proper divisors (23999540751413).

71998622254227 is a wasteful number, since it uses less digits than its factorization.

71998622254227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23999540751412.

The product of its digits is 121927680, while the sum is 66.

The spelling of 71998622254227 in words is "seventy-one trillion, nine hundred ninety-eight billion, six hundred twenty-two million, two hundred fifty-four thousand, two hundred twenty-seven".