16478635871 has 2 divisors, whose sum is σ = 16478635872. Its totient is φ = 16478635870.

The previous prime is 16478635861. The next prime is 16478635907. The reversal of 16478635871 is 17853687461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16478635871 - 2²² = 16474441567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16478635861) 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, 8239317935 + 8239317936.

It is an arithmetic number, because the mean of its divisors is an integer number (8239317936).

Almost surely, 2^16478635871 is an apocalyptic number.

16478635871 is a deficient number, since it is larger than the sum of its proper divisors (1).

16478635871 is an equidigital number, since it uses as much as digits as its factorization.

16478635871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The spelling of 16478635871 in words is "sixteen billion, four hundred seventy-eight million, six hundred thirty-five thousand, eight hundred seventy-one".