408982066919 has 2 divisors, whose sum is σ = 408982066920. Its totient is φ = 408982066918.

The previous prime is 408982066907. The next prime is 408982066921. The reversal of 408982066919 is 919660289804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408982066919 - 2⁸ = 408982066663 is a prime.

It is a super-2 number, since 2×408982066919² (a number of 24 digits) contains 22 as substring.

Together with 408982066921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408982066819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204491033459 + 204491033460.

It is an arithmetic number, because the mean of its divisors is an integer number (204491033460).

Almost surely, 2^408982066919 is an apocalyptic number.

408982066919 is a deficient number, since it is larger than the sum of its proper divisors (1).

408982066919 is an equidigital number, since it uses as much as digits as its factorization.

408982066919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13436928, while the sum is 62.

The spelling of 408982066919 in words is "four hundred eight billion, nine hundred eighty-two million, sixty-six thousand, nine hundred nineteen".