71008138144 has 24 divisors (see below), whose sum is σ = 140634391968. Its totient is φ = 35291467200.

The previous prime is 71008138141. The next prime is 71008138163. The reversal of 71008138144 is 44183180017.

It is not an unprimeable number, because it can be changed into a prime (71008138141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6638382 + ... + 6649069.

It is an arithmetic number, because the mean of its divisors is an integer number (5859766332).

Almost surely, 2^71008138144 is an apocalyptic number.

It is an amenable number.

71008138144 is a deficient number, since it is larger than the sum of its proper divisors (69626253824).

71008138144 is a wasteful number, since it uses less digits than its factorization.

71008138144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13287628 (or 13287620 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

It can be divided in two parts, 710081 and 38144, that added together give a square (748225 = 865²).

The spelling of 71008138144 in words is "seventy-one billion, eight million, one hundred thirty-eight thousand, one hundred forty-four".