71147480020535 has 16 divisors (see below), whose sum is σ = 89092018238400. Its totient is φ = 54441455861760.

The previous prime is 71147480020459. The next prime is 71147480020549. The reversal of 71147480020535 is 53502008474117.

It is not a de Polignac number, because 71147480020535 - 2³⁶ = 71078760543799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71147480020535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6980810 + ... + 13821239.

It is an arithmetic number, because the mean of its divisors is an integer number (5568251139900).

Almost surely, 2^{71147480020535} is an apocalyptic number.

71147480020535 is a deficient number, since it is larger than the sum of its proper divisors (17944538217865).

71147480020535 is a wasteful number, since it uses less digits than its factorization.

71147480020535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20831818.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 71147480020535 in words is "seventy-one trillion, one hundred forty-seven billion, four hundred eighty million, twenty thousand, five hundred thirty-five".