71344412413 has 4 divisors (see below), whose sum is σ = 71798835580. Its totient is φ = 70889989248.

The previous prime is 71344412407. The next prime is 71344412423. The reversal of 71344412413 is 31421444317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31421444317 = 241 ⋅130379437.

It can be written as a sum of positive squares in 2 ways, for example, as 38248798329 + 33095614084 = 195573^2 + 181922^2 .

It is a cyclic number.

It is not a de Polignac number, because 71344412413 - 2¹³ = 71344404221 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 (71344412423) 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, 227211348 + ... + 227211661.

It is an arithmetic number, because the mean of its divisors is an integer number (17949708895).

Almost surely, 2^71344412413 is an apocalyptic number.

It is an amenable number.

71344412413 is a deficient number, since it is larger than the sum of its proper divisors (454423167).

71344412413 is a wasteful number, since it uses less digits than its factorization.

71344412413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454423166.

The product of its digits is 32256, while the sum is 34.

The spelling of 71344412413 in words is "seventy-one billion, three hundred forty-four million, four hundred twelve thousand, four hundred thirteen".