82507888536 has 72 divisors (see below), whose sum is σ = 219180519420. Its totient is φ = 25877322752.

The previous prime is 82507888511. The next prime is 82507888537. The reversal of 82507888536 is 63588870528.

It is a happy number.

It is a super-4 number, since 4×82507888536⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a self number, because there is not a number n which added to its sum of digits gives 82507888536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82507888537) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23920540 + ... + 23923988.

Almost surely, 2^82507888536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82507888536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109590259710).

82507888536 is an abundant number, since it is smaller than the sum of its proper divisors (136672630884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82507888536 is an equidigital number, since it uses as much as digits as its factorization.

82507888536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941 (or 3471 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 82507888536 in words is "eighty-two billion, five hundred seven million, eight hundred eighty-eight thousand, five hundred thirty-six".