71731047575 has 18 divisors (see below), whose sum is σ = 97767643512. Its totient is φ = 52168032400.

The previous prime is 71731047569. The next prime is 71731047581. The reversal of 71731047575 is 57574013717.

It is an interprime number because it is at equal distance from previous prime (71731047569) and next prime (71731047581).

It is not a de Polignac number, because 71731047575 - 2⁴ = 71731047559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11853347 + ... + 11859396.

Almost surely, 2^71731047575 is an apocalyptic number.

71731047575 is a deficient number, since it is larger than the sum of its proper divisors (26036595937).

71731047575 is a wasteful number, since it uses less digits than its factorization.

71731047575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23712775 (or 23712759 counting only the distinct ones).

The product of its (nonzero) digits is 720300, while the sum is 47.

The spelling of 71731047575 in words is "seventy-one billion, seven hundred thirty-one million, forty-seven thousand, five hundred seventy-five".