71138073348 has 36 divisors (see below), whose sum is σ = 186021976140. Its totient is φ = 22895011776.

The previous prime is 71138073313. The next prime is 71138073389. The reversal of 71138073348 is 84337083117.

It can be written as a sum of positive squares in 2 ways, for example, as 33737607684 + 37400465664 = 183678^2 + 193392^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34068915 + ... + 34071002.

It is an arithmetic number, because the mean of its divisors is an integer number (5167277115).

Almost surely, 2^71138073348 is an apocalyptic number.

It is an amenable number.

71138073348 is an abundant number, since it is smaller than the sum of its proper divisors (114883902792).

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

71138073348 is a wasteful number, since it uses less digits than its factorization.

71138073348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68139956 (or 68139951 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 71138073348 in words is "seventy-one billion, one hundred thirty-eight million, seventy-three thousand, three hundred forty-eight".