71071371138 has 8 divisors (see below), whose sum is σ = 142142742288. Its totient is φ = 23690457044.

The previous prime is 71071371089. The next prime is 71071371143. The reversal of 71071371138 is 83117317017.

It is a sphenic number, since it is the product of 3 distinct primes.

71071371138 is an admirable number.

It is a super-2 number, since 2×71071371138² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71071371096 and 71071371105.

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, 5922614256 + ... + 5922614267.

It is an arithmetic number, because the mean of its divisors is an integer number (17767842786).

Almost surely, 2^71071371138 is an apocalyptic number.

71071371138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71071371138 is a wasteful number, since it uses less digits than its factorization.

71071371138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845228528.

The product of its (nonzero) digits is 24696, while the sum is 39.

The spelling of 71071371138 in words is "seventy-one billion, seventy-one million, three hundred seventy-one thousand, one hundred thirty-eight".