71255442062347 has 4 divisors (see below), whose sum is σ = 71255461213296. Its totient is φ = 71255422911400.

The previous prime is 71255442062309. The next prime is 71255442062359. The reversal of 71255442062347 is 74326024455217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71255442062347 - 2⁷ = 71255442062219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71255442062294 and 71255442062303.

It is not an unprimeable number, because it can be changed into a prime (71255442062047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1992904 + ... + 12102997.

It is an arithmetic number, because the mean of its divisors is an integer number (17813865303324).

Almost surely, 2^{71255442062347} is an apocalyptic number.

71255442062347 is a deficient number, since it is larger than the sum of its proper divisors (19150949).

71255442062347 is a wasteful number, since it uses less digits than its factorization.

71255442062347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150948.

The product of its (nonzero) digits is 11289600, while the sum is 52.

The spelling of 71255442062347 in words is "seventy-one trillion, two hundred fifty-five billion, four hundred forty-two million, sixty-two thousand, three hundred forty-seven".