71334123505 has 8 divisors (see below), whose sum is σ = 85610874600. Its totient is φ = 57060681216.

The previous prime is 71334123503. The next prime is 71334123541. The reversal of 71334123505 is 50532143317.

It can be written as a sum of positive squares in 4 ways, for example, as 271359729 + 71062763776 = 16473^2 + 266576^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71334123505 - 2¹ = 71334123503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71334123503) 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, 779520 + ... + 866209.

It is an arithmetic number, because the mean of its divisors is an integer number (10701359325).

Almost surely, 2^71334123505 is an apocalyptic number.

It is an amenable number.

71334123505 is a deficient number, since it is larger than the sum of its proper divisors (14276751095).

71334123505 is a wasteful number, since it uses less digits than its factorization.

71334123505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654403.

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 71334123505 in words is "seventy-one billion, three hundred thirty-four million, one hundred twenty-three thousand, five hundred five".