71042521005463 has 4 divisors (see below), whose sum is σ = 81191452577680. Its totient is φ = 60893589433248.

The previous prime is 71042521005457. The next prime is 71042521005523. The reversal of 71042521005463 is 36450012524017.

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 71042521005463 - 2⁵ = 71042521005431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71042521003463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5074465786098 + ... + 5074465786111.

It is an arithmetic number, because the mean of its divisors is an integer number (20297863144420).

Almost surely, 2^{71042521005463} is an apocalyptic number.

71042521005463 is a deficient number, since it is larger than the sum of its proper divisors (10148931572217).

71042521005463 is a wasteful number, since it uses less digits than its factorization.

71042521005463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148931572216.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 71042521005463 in words is "seventy-one trillion, forty-two billion, five hundred twenty-one million, five thousand, four hundred sixty-three".