82558965931 has 8 divisors (see below), whose sum is σ = 90367191824. Its totient is φ = 74958959520.

The previous prime is 82558965883. The next prime is 82558965953. The reversal of 82558965931 is 13956985528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82558965931 - 2¹³ = 82558957739 is a prime.

It is a super-2 number, since 2×82558965931² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a self number, because there is not a number n which added to its sum of digits gives 82558965931.

It is not an unprimeable number, because it can be changed into a prime (82558965031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52054041 + ... + 52055626.

It is an arithmetic number, because the mean of its divisors is an integer number (11295898978).

Almost surely, 2^82558965931 is an apocalyptic number.

82558965931 is a deficient number, since it is larger than the sum of its proper divisors (7808225893).

82558965931 is a wasteful number, since it uses less digits than its factorization.

82558965931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104109741.

The product of its digits is 23328000, while the sum is 61.

The spelling of 82558965931 in words is "eighty-two billion, five hundred fifty-eight million, nine hundred sixty-five thousand, nine hundred thirty-one".