71728948027 has 8 divisors (see below), whose sum is σ = 79056461232. Its totient is φ = 64535884800.

The previous prime is 71728948021. The next prime is 71728948033. The reversal of 71728948027 is 72084982717.

It is an interprime number because it is at equal distance from previous prime (71728948021) and next prime (71728948033).

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

It is a de Polignac number, because none of the positive numbers 2^k-71728948027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71728948021) 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, 33611374 + ... + 33613507.

It is an arithmetic number, because the mean of its divisors is an integer number (9882057654).

Almost surely, 2^71728948027 is an apocalyptic number.

71728948027 is a deficient number, since it is larger than the sum of its proper divisors (7327513205).

71728948027 is a wasteful number, since it uses less digits than its factorization.

71728948027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67224989.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 71728948027 in words is "seventy-one billion, seven hundred twenty-eight million, nine hundred forty-eight thousand, twenty-seven".