16860990827 has 2 divisors, whose sum is σ = 16860990828. Its totient is φ = 16860990826.

The previous prime is 16860990767. The next prime is 16860990851. The reversal of 16860990827 is 72809906861.

It is a strong prime.

It is an emirp because it is prime and its reverse (72809906861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16860990827 - 2⁶ = 16860990763 is a prime.

It is not a weakly prime, because it can be changed into another prime (16860990877) 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, 8430495413 + 8430495414.

It is an arithmetic number, because the mean of its divisors is an integer number (8430495414).

Almost surely, 2^16860990827 is an apocalyptic number.

16860990827 is a deficient number, since it is larger than the sum of its proper divisors (1).

16860990827 is an equidigital number, since it uses as much as digits as its factorization.

16860990827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 16860990827 in words is "sixteen billion, eight hundred sixty million, nine hundred ninety thousand, eight hundred twenty-seven".