81093686449032 has 96 divisors (see below), whose sum is σ = 223450504524000. Its totient is φ = 26561264256000.

The previous prime is 81093686449001. The next prime is 81093686449033. The reversal of 81093686449032 is 23094468639018.

81093686449032 is a `hidden beast` number, since 8 + 1 + 0 + 9 + 36 + 86 + 4 + 490 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (81093686449033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5321944 + ... + 13802552.

It is an arithmetic number, because the mean of its divisors is an integer number (2327609422125).

Almost surely, 2^{81093686449032} 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 81093686449032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111725252262000).

81093686449032 is an abundant number, since it is smaller than the sum of its proper divisors (142356818074968).

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

81093686449032 is a wasteful number, since it uses less digits than its factorization.

81093686449032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8482931 (or 8482924 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 81093686449032 in words is "eighty-one trillion, ninety-three billion, six hundred eighty-six million, four hundred forty-nine thousand, thirty-two".