1405984607899 has 2 divisors, whose sum is σ = 1405984607900. Its totient is φ = 1405984607898.

The previous prime is 1405984607873. The next prime is 1405984608019. The reversal of 1405984607899 is 9987064895041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1405984607899 - 2¹⁵ = 1405984575131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1405984607809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702992303949 + 702992303950.

It is an arithmetic number, because the mean of its divisors is an integer number (702992303950).

Almost surely, 2^{1405984607899} is an apocalyptic number.

1405984607899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405984607899 is an equidigital number, since it uses as much as digits as its factorization.

1405984607899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156764160, while the sum is 70.

The spelling of 1405984607899 in words is "one trillion, four hundred five billion, nine hundred eighty-four million, six hundred seven thousand, eight hundred ninety-nine".