12535444404445 has 8 divisors (see below), whose sum is σ = 15180538178520. Its totient is φ = 9936352261440.

The previous prime is 12535444404433. The next prime is 12535444404493. The reversal of 12535444404445 is 54440444453521.

It can be written as a sum of positive squares in 4 ways, for example, as 462001605849 + 12073442798596 = 679707^2 + 3474686^2 .

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

It is not a de Polignac number, because 12535444404445 - 2¹⁵ = 12535444371677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11500407166 + ... + 11500408255.

It is an arithmetic number, because the mean of its divisors is an integer number (1897567272315).

Almost surely, 2^{12535444404445} is an apocalyptic number.

It is an amenable number.

12535444404445 is a deficient number, since it is larger than the sum of its proper divisors (2645093774075).

12535444404445 is a wasteful number, since it uses less digits than its factorization.

12535444404445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23000815535.

The product of its (nonzero) digits is 12288000, while the sum is 49.

Adding to 12535444404445 its reverse (54440444453521), we get a palindrome (66975888857966).

The spelling of 12535444404445 in words is "twelve trillion, five hundred thirty-five billion, four hundred forty-four million, four hundred four thousand, four hundred forty-five".