71675571523 has 4 divisors (see below), whose sum is σ = 71816388480. Its totient is φ = 71534754568.

The previous prime is 71675571491. The next prime is 71675571529. The reversal of 71675571523 is 32517557617.

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 71675571523 - 2⁵ = 71675571491 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71675571529) 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, 70407715 + ... + 70408732.

It is an arithmetic number, because the mean of its divisors is an integer number (17954097120).

Almost surely, 2^71675571523 is an apocalyptic number.

71675571523 is a deficient number, since it is larger than the sum of its proper divisors (140816957).

71675571523 is a wasteful number, since it uses less digits than its factorization.

71675571523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140816956.

The product of its digits is 1543500, while the sum is 49.

The spelling of 71675571523 in words is "seventy-one billion, six hundred seventy-five million, five hundred seventy-one thousand, five hundred twenty-three".