71528727707 has 8 divisors (see below), whose sum is σ = 72451660800. Its totient is φ = 70606232424.

The previous prime is 71528727671. The next prime is 71528727713. The reversal of 71528727707 is 70772782517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71528727707 - 2³⁰ = 70454985883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71528777707) 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, 225998 + ... + 440604.

It is an arithmetic number, because the mean of its divisors is an integer number (9056457600).

Almost surely, 2^71528727707 is an apocalyptic number.

71528727707 is a deficient number, since it is larger than the sum of its proper divisors (922933093).

71528727707 is a wasteful number, since it uses less digits than its factorization.

71528727707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218905.

The product of its (nonzero) digits is 2689120, while the sum is 53.

The spelling of 71528727707 in words is "seventy-one billion, five hundred twenty-eight million, seven hundred twenty-seven thousand, seven hundred seven".