32972389691 has 2 divisors, whose sum is σ = 32972389692. Its totient is φ = 32972389690.

The previous prime is 32972389687. The next prime is 32972389693. The reversal of 32972389691 is 19698327923.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32972389691 - 2² = 32972389687 is a prime.

Together with 32972389693, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32972389691.

It is not a weakly prime, because it can be changed into another prime (32972389693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16486194845 + 16486194846.

It is an arithmetic number, because the mean of its divisors is an integer number (16486194846).

Almost surely, 2^32972389691 is an apocalyptic number.

32972389691 is a deficient number, since it is larger than the sum of its proper divisors (1).

32972389691 is an equidigital number, since it uses as much as digits as its factorization.

32972389691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 59.

The spelling of 32972389691 in words is "thirty-two billion, nine hundred seventy-two million, three hundred eighty-nine thousand, six hundred ninety-one".