71573447603147 has 4 divisors (see below), whose sum is σ = 81798225832176. Its totient is φ = 61348669374120.

The previous prime is 71573447603143. The next prime is 71573447603153. The reversal of 71573447603147 is 74130674437517.

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 71573447603147 - 2² = 71573447603143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71573447603143) 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, 5112389114504 + ... + 5112389114517.

It is an arithmetic number, because the mean of its divisors is an integer number (20449556458044).

Almost surely, 2^{71573447603147} is an apocalyptic number.

71573447603147 is a deficient number, since it is larger than the sum of its proper divisors (10224778229029).

71573447603147 is a wasteful number, since it uses less digits than its factorization.

71573447603147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224778229028.

The product of its (nonzero) digits is 41489280, while the sum is 59.

The spelling of 71573447603147 in words is "seventy-one trillion, five hundred seventy-three billion, four hundred forty-seven million, six hundred three thousand, one hundred forty-seven".