10405505049959 has 2 divisors, whose sum is σ = 10405505049960. Its totient is φ = 10405505049958.

The previous prime is 10405505049931. The next prime is 10405505050019. The reversal of 10405505049959 is 95994050550401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10405505049959 - 2²⁸ = 10405236614503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10405505048959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202752524979 + 5202752524980.

It is an arithmetic number, because the mean of its divisors is an integer number (5202752524980).

Almost surely, 2^{10405505049959} is an apocalyptic number.

10405505049959 is a deficient number, since it is larger than the sum of its proper divisors (1).

10405505049959 is an equidigital number, since it uses as much as digits as its factorization.

10405505049959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290000, while the sum is 56.

The spelling of 10405505049959 in words is "ten trillion, four hundred five billion, five hundred five million, forty-nine thousand, nine hundred fifty-nine".