16419518771 has 2 divisors, whose sum is σ = 16419518772. Its totient is φ = 16419518770.

The previous prime is 16419518719. The next prime is 16419518777. The reversal of 16419518771 is 17781591461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16419518771 - 2²² = 16415324467 is a prime.

It is not a weakly prime, because it can be changed into another prime (16419518777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8209759385 + 8209759386.

It is an arithmetic number, because the mean of its divisors is an integer number (8209759386).

Almost surely, 2^16419518771 is an apocalyptic number.

16419518771 is a deficient number, since it is larger than the sum of its proper divisors (1).

16419518771 is an equidigital number, since it uses as much as digits as its factorization.

16419518771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 50.

The spelling of 16419518771 in words is "sixteen billion, four hundred nineteen million, five hundred eighteen thousand, seven hundred seventy-one".