404340453551 has 2 divisors, whose sum is σ = 404340453552. Its totient is φ = 404340453550.

The previous prime is 404340453487. The next prime is 404340453613. The reversal of 404340453551 is 155354043404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404340453551 - 2⁶ = 404340453487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404340455551) 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, 202170226775 + 202170226776.

It is an arithmetic number, because the mean of its divisors is an integer number (202170226776).

Almost surely, 2^404340453551 is an apocalyptic number.

404340453551 is a deficient number, since it is larger than the sum of its proper divisors (1).

404340453551 is an equidigital number, since it uses as much as digits as its factorization.

404340453551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 404340453551 its reverse (155354043404), we get a palindrome (559694496955).

The spelling of 404340453551 in words is "four hundred four billion, three hundred forty million, four hundred fifty-three thousand, five hundred fifty-one".