32678392991 has 2 divisors, whose sum is σ = 32678392992. Its totient is φ = 32678392990.

The previous prime is 32678392949. The next prime is 32678392993. The reversal of 32678392991 is 19929387623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32678392991 - 2⁶ = 32678392927 is a prime.

Together with 32678392993, 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 32678392991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32678392993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16339196495 + 16339196496.

It is an arithmetic number, because the mean of its divisors is an integer number (16339196496).

Almost surely, 2^32678392991 is an apocalyptic number.

32678392991 is a deficient number, since it is larger than the sum of its proper divisors (1).

32678392991 is an equidigital number, since it uses as much as digits as its factorization.

32678392991 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 32678392991 in words is "thirty-two billion, six hundred seventy-eight million, three hundred ninety-two thousand, nine hundred ninety-one".