32545440013 has 4 divisors (see below), whose sum is σ = 33960459168. Its totient is φ = 31130420860.

The previous prime is 32545439981. The next prime is 32545440029. The reversal of 32545440013 is 31004454523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31004454523 = 7 ⋅4429207789.

It is a cyclic number.

It is not a de Polignac number, because 32545440013 - 2⁵ = 32545439981 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32545440113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707509543 + ... + 707509588.

It is an arithmetic number, because the mean of its divisors is an integer number (8490114792).

Almost surely, 2^32545440013 is an apocalyptic number.

It is an amenable number.

32545440013 is a deficient number, since it is larger than the sum of its proper divisors (1415019155).

32545440013 is a wasteful number, since it uses less digits than its factorization.

32545440013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415019154.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 32545440013 its reverse (31004454523), we get a palindrome (63549894536).

The spelling of 32545440013 in words is "thirty-two billion, five hundred forty-five million, four hundred forty thousand, thirteen".