71129585060 has 12 divisors (see below), whose sum is σ = 149372128668. Its totient is φ = 28451834016.

The previous prime is 71129585041. The next prime is 71129585101. The reversal of 71129585060 is 6058592117.

It can be written as a sum of positive squares in 2 ways, for example, as 37088597056 + 34040988004 = 192584^2 + 184502^2 .

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, 1778239607 + ... + 1778239646.

It is an arithmetic number, because the mean of its divisors is an integer number (12447677389).

Almost surely, 2^71129585060 is an apocalyptic number.

It is an amenable number.

71129585060 is an abundant number, since it is smaller than the sum of its proper divisors (78242543608).

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

71129585060 is a wasteful number, since it uses less digits than its factorization.

71129585060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556479262 (or 3556479260 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 71129585060 in words is "seventy-one billion, one hundred twenty-nine million, five hundred eighty-five thousand, sixty".