71270036512 has 24 divisors (see below), whose sum is σ = 140655973500. Its totient is φ = 35547884544.

The previous prime is 71270036491. The next prime is 71270036521. The reversal of 71270036512 is 21563007217.

It can be written as a sum of positive squares in 2 ways, for example, as 48542664976 + 22727371536 = 220324^2 + 150756^2 .

It is a super-2 number, since 2×71270036512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2709637 + ... + 2735812.

Almost surely, 2^71270036512 is an apocalyptic number.

It is an amenable number.

71270036512 is a deficient number, since it is larger than the sum of its proper divisors (69385936988).

71270036512 is a wasteful number, since it uses less digits than its factorization.

71270036512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445868 (or 5445860 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 71270036512 in words is "seventy-one billion, two hundred seventy million, thirty-six thousand, five hundred twelve".