32981221879 has 2 divisors, whose sum is σ = 32981221880. Its totient is φ = 32981221878.

The previous prime is 32981221849. The next prime is 32981221901. The reversal of 32981221879 is 97812218923.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32981221879 - 2⁹ = 32981221367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32981221829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16490610939 + 16490610940.

It is an arithmetic number, because the mean of its divisors is an integer number (16490610940).

Almost surely, 2^32981221879 is an apocalyptic number.

32981221879 is a deficient number, since it is larger than the sum of its proper divisors (1).

32981221879 is an equidigital number, since it uses as much as digits as its factorization.

32981221879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The spelling of 32981221879 in words is "thirty-two billion, nine hundred eighty-one million, two hundred twenty-one thousand, eight hundred seventy-nine".