82497593481 has 4 divisors (see below), whose sum is σ = 109996791312. Its totient is φ = 54998395652.

The previous prime is 82497593467. The next prime is 82497593491. The reversal of 82497593481 is 18439579428.

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 82497593481 - 2⁵ = 82497593449 is a prime.

It is a super-2 number, since 2×82497593481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82497593491) 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, 13749598911 + ... + 13749598916.

It is an arithmetic number, because the mean of its divisors is an integer number (27499197828).

Almost surely, 2^82497593481 is an apocalyptic number.

It is an amenable number.

82497593481 is a deficient number, since it is larger than the sum of its proper divisors (27499197831).

82497593481 is a wasteful number, since it uses less digits than its factorization.

82497593481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27499197830.

The product of its digits is 17418240, while the sum is 60.

The spelling of 82497593481 in words is "eighty-two billion, four hundred ninety-seven million, five hundred ninety-three thousand, four hundred eighty-one".