16381752677 has 2 divisors, whose sum is σ = 16381752678. Its totient is φ = 16381752676.

The previous prime is 16381752643. The next prime is 16381752689. The reversal of 16381752677 is 77625718361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10959786721 + 5421965956 = 104689^2 + 73634^2 .

It is a cyclic number.

It is not a de Polignac number, because 16381752677 - 2²⁴ = 16364975461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16381752617) 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, 8190876338 + 8190876339.

It is an arithmetic number, because the mean of its divisors is an integer number (8190876339).

Almost surely, 2^16381752677 is an apocalyptic number.

It is an amenable number.

16381752677 is a deficient number, since it is larger than the sum of its proper divisors (1).

16381752677 is an equidigital number, since it uses as much as digits as its factorization.

16381752677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 53.

The spelling of 16381752677 in words is "sixteen billion, three hundred eighty-one million, seven hundred fifty-two thousand, six hundred seventy-seven".