71728387060 has 24 divisors (see below), whose sum is σ = 164323214496. Its totient is φ = 26083049760.

The previous prime is 71728387043. The next prime is 71728387061. The reversal of 71728387060 is 6078382717.

It is a junction number, because it is equal to n+sod(n) for n = 71728386995 and 71728387013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71728387061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163018842 + ... + 163019281.

It is an arithmetic number, because the mean of its divisors is an integer number (6846800604).

Almost surely, 2^71728387060 is an apocalyptic number.

It is an amenable number.

71728387060 is an abundant number, since it is smaller than the sum of its proper divisors (92594827436).

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

71728387060 is a wasteful number, since it uses less digits than its factorization.

71728387060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326038143 (or 326038141 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 71728387060 in words is "seventy-one billion, seven hundred twenty-eight million, three hundred eighty-seven thousand, sixty".