32421421289 has 2 divisors, whose sum is σ = 32421421290. Its totient is φ = 32421421288.

The previous prime is 32421421283. The next prime is 32421421301. The reversal of 32421421289 is 98212412423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19215504400 + 13205916889 = 138620^2 + 114917^2 .

It is a cyclic number.

It is not a de Polignac number, because 32421421289 - 2²⁰ = 32420372713 is a prime.

It is a super-2 number, since 2×32421421289² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32421421283) 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 as a sum of consecutive naturals, namely, 16210710644 + 16210710645.

It is an arithmetic number, because the mean of its divisors is an integer number (16210710645).

Almost surely, 2^32421421289 is an apocalyptic number.

It is an amenable number.

32421421289 is a deficient number, since it is larger than the sum of its proper divisors (1).

32421421289 is an equidigital number, since it uses as much as digits as its factorization.

32421421289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The spelling of 32421421289 in words is "thirty-two billion, four hundred twenty-one million, four hundred twenty-one thousand, two hundred eighty-nine".