16734944977 has 2 divisors, whose sum is σ = 16734944978. Its totient is φ = 16734944976.

The previous prime is 16734944957. The next prime is 16734945011. The reversal of 16734944977 is 77944943761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11619977616 + 5114967361 = 107796^2 + 71519^2 .

It is a cyclic number.

It is not a de Polignac number, because 16734944977 - 2²⁷ = 16600727249 is a prime.

It is not a weakly prime, because it can be changed into another prime (16734944957) 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, 8367472488 + 8367472489.

It is an arithmetic number, because the mean of its divisors is an integer number (8367472489).

Almost surely, 2^16734944977 is an apocalyptic number.

It is an amenable number.

16734944977 is a deficient number, since it is larger than the sum of its proper divisors (1).

16734944977 is an equidigital number, since it uses as much as digits as its factorization.

16734944977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32006016, while the sum is 61.

The spelling of 16734944977 in words is "sixteen billion, seven hundred thirty-four million, nine hundred forty-four thousand, nine hundred seventy-seven".