71047644674017 has 4 divisors (see below), whose sum is σ = 77506521462576. Its totient is φ = 64588767885460.

The previous prime is 71047644673987. The next prime is 71047644674059.

71047644674017 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71047644674017 - 2¹⁵ = 71047644641249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71047644624017) 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, 3229438394263 + ... + 3229438394284.

It is an arithmetic number, because the mean of its divisors is an integer number (19376630365644).

Almost surely, 2^{71047644674017} is an apocalyptic number.

It is an amenable number.

71047644674017 is a deficient number, since it is larger than the sum of its proper divisors (6458876788559).

71047644674017 is a wasteful number, since it uses less digits than its factorization.

71047644674017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458876788558.

The product of its (nonzero) digits is 22127616, while the sum is 58.

The spelling of 71047644674017 in words is "seventy-one trillion, forty-seven billion, six hundred forty-four million, six hundred seventy-four thousand, seventeen".