71497586373 has 4 divisors (see below), whose sum is σ = 95330115168. Its totient is φ = 47665057580.

The previous prime is 71497586357. The next prime is 71497586417. The reversal of 71497586373 is 37368579417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71497586373 - 2⁴ = 71497586357 is a prime.

It is a super-2 number, since 2×71497586373² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71497586773) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11916264393 + ... + 11916264398.

It is an arithmetic number, because the mean of its divisors is an integer number (23832528792).

Almost surely, 2^71497586373 is an apocalyptic number.

It is an amenable number.

71497586373 is a deficient number, since it is larger than the sum of its proper divisors (23832528795).

71497586373 is a wasteful number, since it uses less digits than its factorization.

71497586373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23832528794.

The product of its digits is 26671680, while the sum is 60.

The spelling of 71497586373 in words is "seventy-one billion, four hundred ninety-seven million, five hundred eighty-six thousand, three hundred seventy-three".