71486322013 has 4 divisors (see below), whose sum is σ = 71490636508. Its totient is φ = 71482007520.

The previous prime is 71486321999. The next prime is 71486322049. The reversal of 71486322013 is 31022368417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31022368417 = 17 ⋅1824845201.

It can be written as a sum of positive squares in 2 ways, for example, as 6753223684 + 64733098329 = 82178^2 + 254427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71486322013 is a prime.

It is a super-2 number, since 2×71486322013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71486322113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2132298 + ... + 2165563.

It is an arithmetic number, because the mean of its divisors is an integer number (17872659127).

Almost surely, 2^71486322013 is an apocalyptic number.

It is an amenable number.

71486322013 is a deficient number, since it is larger than the sum of its proper divisors (4314495).

71486322013 is a wasteful number, since it uses less digits than its factorization.

71486322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314494.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 71486322013 in words is "seventy-one billion, four hundred eighty-six million, three hundred twenty-two thousand, thirteen".