164935438919 has 2 divisors, whose sum is σ = 164935438920. Its totient is φ = 164935438918.

The previous prime is 164935438901. The next prime is 164935438933. The reversal of 164935438919 is 919834539461.

164935438919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (919834539461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164935438919 - 2⁸ = 164935438663 is a prime.

It is a super-2 number, since 2×164935438919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164935438819) 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, 82467719459 + 82467719460.

It is an arithmetic number, because the mean of its divisors is an integer number (82467719460).

Almost surely, 2^164935438919 is an apocalyptic number.

164935438919 is a deficient number, since it is larger than the sum of its proper divisors (1).

164935438919 is an equidigital number, since it uses as much as digits as its factorization.

164935438919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 62.

The spelling of 164935438919 in words is "one hundred sixty-four billion, nine hundred thirty-five million, four hundred thirty-eight thousand, nine hundred nineteen".