71138836264 has 16 divisors (see below), whose sum is σ = 133418716020. Its totient is φ = 35560512000.

The previous prime is 71138836201. The next prime is 71138836273. The reversal of 71138836264 is 46263883117.

It can be written as a sum of positive squares in 2 ways, for example, as 55017455364 + 16121380900 = 234558^2 + 126970^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079259 + ... + 1143274.

Almost surely, 2^71138836264 is an apocalyptic number.

It is an amenable number.

71138836264 is a deficient number, since it is larger than the sum of its proper divisors (62279879756).

71138836264 is a wasteful number, since it uses less digits than its factorization.

71138836264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226540 (or 2226536 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The spelling of 71138836264 in words is "seventy-one billion, one hundred thirty-eight million, eight hundred thirty-six thousand, two hundred sixty-four".