10386396991 has 2 divisors, whose sum is σ = 10386396992. Its totient is φ = 10386396990.

The previous prime is 10386396989. The next prime is 10386397051. The reversal of 10386396991 is 19969368301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10386396991 - 2¹ = 10386396989 is a prime.

Together with 10386396989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10386396901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5193198495 + 5193198496.

It is an arithmetic number, because the mean of its divisors is an integer number (5193198496).

Almost surely, 2^10386396991 is an apocalyptic number.

10386396991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10386396991 is an equidigital number, since it uses as much as digits as its factorization.

10386396991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The spelling of 10386396991 in words is "ten billion, three hundred eighty-six million, three hundred ninety-six thousand, nine hundred ninety-one".