405297164819 has 2 divisors, whose sum is σ = 405297164820. Its totient is φ = 405297164818.

The previous prime is 405297164771. The next prime is 405297164863. The reversal of 405297164819 is 918461792504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405297164819 - 2¹⁶ = 405297099283 is a prime.

It is a super-2 number, since 2×405297164819² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (405297164869) 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, 202648582409 + 202648582410.

It is an arithmetic number, because the mean of its divisors is an integer number (202648582410).

Almost surely, 2^405297164819 is an apocalyptic number.

405297164819 is a deficient number, since it is larger than the sum of its proper divisors (1).

405297164819 is an equidigital number, since it uses as much as digits as its factorization.

405297164819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 405297164819 in words is "four hundred five billion, two hundred ninety-seven million, one hundred sixty-four thousand, eight hundred nineteen".