32213981389 has 4 divisors (see below), whose sum is σ = 32285727900. Its totient is φ = 32142234880.

The previous prime is 32213981339. The next prime is 32213981537. The reversal of 32213981389 is 98318931223.

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 18507425764 + 13706555625 = 136042^2 + 117075^2 .

It is a cyclic number.

It is not a de Polignac number, because 32213981389 - 2¹⁵ = 32213948621 is a prime.

It is a super-3 number, since 3×32213981389³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) 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 (32213981339) 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, 35872582 + ... + 35873479.

It is an arithmetic number, because the mean of its divisors is an integer number (8071431975).

Almost surely, 2^32213981389 is an apocalyptic number.

It is an amenable number.

32213981389 is a deficient number, since it is larger than the sum of its proper divisors (71746511).

32213981389 is an equidigital number, since it uses as much as digits as its factorization.

32213981389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71746510.

The product of its digits is 559872, while the sum is 49.

The spelling of 32213981389 in words is "thirty-two billion, two hundred thirteen million, nine hundred eighty-one thousand, three hundred eighty-nine".