71134618525 has 12 divisors (see below), whose sum is σ = 93395570292. Its totient is φ = 53560183040.

The previous prime is 71134618519. The next prime is 71134618561. The reversal of 71134618525 is 52581643117.

It can be written as a sum of positive squares in 6 ways, for example, as 10329469956 + 60805148569 = 101634^2 + 246587^2 .

It is not a de Polignac number, because 71134618525 - 2⁷ = 71134618397 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 83687362 + ... + 83688211.

It is an arithmetic number, because the mean of its divisors is an integer number (7782964191).

Almost surely, 2^71134618525 is an apocalyptic number.

It is an amenable number.

71134618525 is a deficient number, since it is larger than the sum of its proper divisors (22260951767).

71134618525 is a wasteful number, since it uses less digits than its factorization.

71134618525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167375600 (or 167375595 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The spelling of 71134618525 in words is "seventy-one billion, one hundred thirty-four million, six hundred eighteen thousand, five hundred twenty-five".