32918810989 has 4 divisors (see below), whose sum is σ = 33721708860. Its totient is φ = 32115913120.

The previous prime is 32918810983. The next prime is 32918810993. The reversal of 32918810989 is 98901881923.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98901881923 = 13 ⋅7607837071.

It can be written as a sum of positive squares in 2 ways, for example, as 572788489 + 32346022500 = 23933^2 + 179850^2 .

It is a cyclic number.

It is not a de Polignac number, because 32918810989 - 2¹⁷ = 32918679917 is a prime.

It is a Smith number, since the sum of its digits (58) 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 (32918810983) 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, 401448874 + ... + 401448955.

It is an arithmetic number, because the mean of its divisors is an integer number (8430427215).

Almost surely, 2^32918810989 is an apocalyptic number.

It is an amenable number.

32918810989 is a deficient number, since it is larger than the sum of its proper divisors (802897871).

32918810989 is an equidigital number, since it uses as much as digits as its factorization.

32918810989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802897870.

The product of its (nonzero) digits is 2239488, while the sum is 58.

The spelling of 32918810989 in words is "thirty-two billion, nine hundred eighteen million, eight hundred ten thousand, nine hundred eighty-nine".