404450697197 has 2 divisors, whose sum is σ = 404450697198. Its totient is φ = 404450697196.

The previous prime is 404450697169. The next prime is 404450697199. The reversal of 404450697197 is 791796054404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279068136361 + 125382560836 = 528269^2 + 354094^2 .

It is a cyclic number.

It is not a de Polignac number, because 404450697197 - 2²⁰ = 404449648621 is a prime.

Together with 404450697199, 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 (404450697199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202225348598 + 202225348599.

It is an arithmetic number, because the mean of its divisors is an integer number (202225348599).

Almost surely, 2^404450697197 is an apocalyptic number.

It is an amenable number.

404450697197 is a deficient number, since it is larger than the sum of its proper divisors (1).

404450697197 is an equidigital number, since it uses as much as digits as its factorization.

404450697197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 404450697197 in words is "four hundred four billion, four hundred fifty million, six hundred ninety-seven thousand, one hundred ninety-seven".