405606582551 has 2 divisors, whose sum is σ = 405606582552. Its totient is φ = 405606582550.

The previous prime is 405606582541. The next prime is 405606582569. The reversal of 405606582551 is 155285606504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405606582551 - 2²⁶ = 405539473687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405606582496 and 405606582505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405606582541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202803291275 + 202803291276.

It is an arithmetic number, because the mean of its divisors is an integer number (202803291276).

Almost surely, 2^405606582551 is an apocalyptic number.

405606582551 is a deficient number, since it is larger than the sum of its proper divisors (1).

405606582551 is an equidigital number, since it uses as much as digits as its factorization.

405606582551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 405606582551 in words is "four hundred five billion, six hundred six million, five hundred eighty-two thousand, five hundred fifty-one".