449191914877 has 2 divisors, whose sum is σ = 449191914878. Its totient is φ = 449191914876.

The previous prime is 449191914833. The next prime is 449191914949. The reversal of 449191914877 is 778419191944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449176082436 + 15832441 = 670206^2 + 3979^2 .

It is a cyclic number.

It is not a de Polignac number, because 449191914877 - 2²⁷ = 449057697149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449191914827) 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, 224595957438 + 224595957439.

It is an arithmetic number, because the mean of its divisors is an integer number (224595957439).

Almost surely, 2^449191914877 is an apocalyptic number.

It is an amenable number.

449191914877 is a deficient number, since it is larger than the sum of its proper divisors (1).

449191914877 is an equidigital number, since it uses as much as digits as its factorization.

449191914877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 64.

The spelling of 449191914877 in words is "four hundred forty-nine billion, one hundred ninety-one million, nine hundred fourteen thousand, eight hundred seventy-seven".