16986931211 has 2 divisors, whose sum is σ = 16986931212. Its totient is φ = 16986931210.

The previous prime is 16986931207. The next prime is 16986931219. The reversal of 16986931211 is 11213968961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16986931211 - 2² = 16986931207 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16986931219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493465605 + 8493465606.

It is an arithmetic number, because the mean of its divisors is an integer number (8493465606).

Almost surely, 2^16986931211 is an apocalyptic number.

16986931211 is a deficient number, since it is larger than the sum of its proper divisors (1).

16986931211 is an equidigital number, since it uses as much as digits as its factorization.

16986931211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 47.

The spelling of 16986931211 in words is "sixteen billion, nine hundred eighty-six million, nine hundred thirty-one thousand, two hundred eleven".