81232086848304 has 80 divisors (see below), whose sum is σ = 252450595738880. Its totient is φ = 21987632528640.

The previous prime is 81232086848291. The next prime is 81232086848309. The reversal of 81232086848304 is 40384868023218.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (81232086848309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6362155807 + ... + 6362168574.

It is an arithmetic number, because the mean of its divisors is an integer number (3155632446736).

Almost surely, 2^{81232086848304} is an apocalyptic number.

81232086848304 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

81232086848304 is an abundant number, since it is smaller than the sum of its proper divisors (171218508890576).

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

81232086848304 is a wasteful number, since it uses less digits than its factorization.

81232086848304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724324418 (or 12724324412 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 57.

The spelling of 81232086848304 in words is "eighty-one trillion, two hundred thirty-two billion, eighty-six million, eight hundred forty-eight thousand, three hundred four".