71071371139 has 4 divisors (see below), whose sum is σ = 74811969640. Its totient is φ = 67330772640.

The previous prime is 71071371089. The next prime is 71071371143. The reversal of 71071371139 is 93117317017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93117317017 = 47 ⋅1981219511.

It is a cyclic number.

It is not a de Polignac number, because 71071371139 - 2¹⁷ = 71071240067 is a prime.

It is a super-3 number, since 3×71071371139³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71071371169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870299222 + ... + 1870299259.

It is an arithmetic number, because the mean of its divisors is an integer number (18702992410).

Almost surely, 2^71071371139 is an apocalyptic number.

71071371139 is a deficient number, since it is larger than the sum of its proper divisors (3740598501).

71071371139 is a wasteful number, since it uses less digits than its factorization.

71071371139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740598500.

The product of its (nonzero) digits is 27783, while the sum is 40.

The spelling of 71071371139 in words is "seventy-one billion, seventy-one million, three hundred seventy-one thousand, one hundred thirty-nine".