10997209687 has 2 divisors, whose sum is σ = 10997209688. Its totient is φ = 10997209686.

The previous prime is 10997209661. The next prime is 10997209693. The reversal of 10997209687 is 78690279901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10997209687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10997209697) 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, 5498604843 + 5498604844.

It is an arithmetic number, because the mean of its divisors is an integer number (5498604844).

Almost surely, 2^10997209687 is an apocalyptic number.

10997209687 is a deficient number, since it is larger than the sum of its proper divisors (1).

10997209687 is an equidigital number, since it uses as much as digits as its factorization.

10997209687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The spelling of 10997209687 in words is "ten billion, nine hundred ninety-seven million, two hundred nine thousand, six hundred eighty-seven".