81094487545635 has 16 divisors (see below), whose sum is σ = 130684641803520. Its totient is φ = 42939239447520.

The previous prime is 81094487545613. The next prime is 81094487545679. The reversal of 81094487545635 is 53654578449018.

It is not a de Polignac number, because 81094487545635 - 2²⁵ = 81094453991203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 81094487545635.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19447117231 + ... + 19447121400.

It is an arithmetic number, because the mean of its divisors is an integer number (8167790112720).

Almost surely, 2^{81094487545635} is an apocalyptic number.

81094487545635 is a deficient number, since it is larger than the sum of its proper divisors (49590154257885).

81094487545635 is a wasteful number, since it uses less digits than its factorization.

81094487545635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38894238778.

The product of its (nonzero) digits is 580608000, while the sum is 69.

The spelling of 81094487545635 in words is "eighty-one trillion, ninety-four billion, four hundred eighty-seven million, five hundred forty-five thousand, six hundred thirty-five".