16388761979 has 2 divisors, whose sum is σ = 16388761980. Its totient is φ = 16388761978.

The previous prime is 16388761901. The next prime is 16388762003. The reversal of 16388761979 is 97916788361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16388761979 - 2²⁴ = 16371984763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16388761579) 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, 8194380989 + 8194380990.

It is an arithmetic number, because the mean of its divisors is an integer number (8194380990).

Almost surely, 2^16388761979 is an apocalyptic number.

16388761979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16388761979 is an equidigital number, since it uses as much as digits as its factorization.

16388761979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 65.

The spelling of 16388761979 in words is "sixteen billion, three hundred eighty-eight million, seven hundred sixty-one thousand, nine hundred seventy-nine".