71340142128 has 20 divisors (see below), whose sum is σ = 184295367288. Its totient is φ = 23780047360.

The previous prime is 71340142063. The next prime is 71340142169. The reversal of 71340142128 is 82124104317.

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, 743126433 + ... + 743126528.

Almost surely, 2^71340142128 is an apocalyptic number.

It is an amenable number.

71340142128 is an abundant number, since it is smaller than the sum of its proper divisors (112955225160).

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

71340142128 is a wasteful number, since it uses less digits than its factorization.

71340142128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486252972 (or 1486252966 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 71340142128 in words is "seventy-one billion, three hundred forty million, one hundred forty-two thousand, one hundred twenty-eight".