71536113706 has 4 divisors (see below), whose sum is σ = 107304170562. Its totient is φ = 35768056852.

The previous prime is 71536113659. The next prime is 71536113707. The reversal of 71536113706 is 60731163517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60731163517 = 2903 ⋅20920139.

It can be written as a sum of positive squares in only one way, i.e., 58416473025 + 13119640681 = 241695^2 + 114541^2 .

It is a super-2 number, since 2×71536113706² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71536113707) by changing a digit.

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, 17884028425 + ... + 17884028428.

Almost surely, 2^71536113706 is an apocalyptic number.

71536113706 is a deficient number, since it is larger than the sum of its proper divisors (35768056856).

71536113706 is a wasteful number, since it uses less digits than its factorization.

71536113706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35768056855.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 71536113706 in words is "seventy-one billion, five hundred thirty-six million, one hundred thirteen thousand, seven hundred six".