71372738258 has 4 divisors (see below), whose sum is σ = 107059107390. Its totient is φ = 35686369128.

The previous prime is 71372738237. The next prime is 71372738293. The reversal of 71372738258 is 85283727317.

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

It can be written as a sum of positive squares in only one way, i.e., 47113741249 + 24258997009 = 217057^2 + 155753^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17843184563 + ... + 17843184566.

Almost surely, 2^71372738258 is an apocalyptic number.

71372738258 is a deficient number, since it is larger than the sum of its proper divisors (35686369132).

71372738258 is a wasteful number, since it uses less digits than its factorization.

71372738258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35686369131.

The product of its digits is 3951360, while the sum is 53.

The spelling of 71372738258 in words is "seventy-one billion, three hundred seventy-two million, seven hundred thirty-eight thousand, two hundred fifty-eight".