71296442018 has 8 divisors (see below), whose sum is σ = 113235525612. Its totient is φ = 33551266816.

The previous prime is 71296441999. The next prime is 71296442027. The reversal of 71296442018 is 81024469217.

It can be written as a sum of positive squares in 2 ways, for example, as 71295942169 + 499849 = 267013^2 + 707^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 71296442018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048477055 + ... + 1048477122.

Almost surely, 2^71296442018 is an apocalyptic number.

71296442018 is a deficient number, since it is larger than the sum of its proper divisors (41939083594).

71296442018 is a wasteful number, since it uses less digits than its factorization.

71296442018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096954196.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 71296442018 in words is "seventy-one billion, two hundred ninety-six million, four hundred forty-two thousand, eighteen".