32506638113 has 4 divisors (see below), whose sum is σ = 32511495828. Its totient is φ = 32501780400.

The previous prime is 32506638107. The next prime is 32506638121. The reversal of 32506638113 is 31183660523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26018657809 + 6487980304 = 161303^2 + 80548^2 .

It is a cyclic number.

It is not a de Polignac number, because 32506638113 - 2⁴ = 32506638097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32506638173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2418806 + ... + 2432207.

It is an arithmetic number, because the mean of its divisors is an integer number (8127873957).

Almost surely, 2^32506638113 is an apocalyptic number.

It is an amenable number.

32506638113 is a deficient number, since it is larger than the sum of its proper divisors (4857715).

32506638113 is an equidigital number, since it uses as much as digits as its factorization.

32506638113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857714.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 32506638113 in words is "thirty-two billion, five hundred six million, six hundred thirty-eight thousand, one hundred thirteen".