449764890566 has 16 divisors (see below), whose sum is σ = 704111043168. Its totient is φ = 215064854400.

The previous prime is 449764890551. The next prime is 449764890581. The reversal of 449764890566 is 665098467944.

It is an interprime number because it is at equal distance from previous prime (449764890551) and next prime (449764890581).

It is a junction number, because it is equal to n+sod(n) for n = 449764890496 and 449764890505.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 660995 + ... + 1156046.

It is an arithmetic number, because the mean of its divisors is an integer number (44006940198).

Almost surely, 2^449764890566 is an apocalyptic number.

449764890566 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

449764890566 is a deficient number, since it is larger than the sum of its proper divisors (254346152602).

449764890566 is a wasteful number, since it uses less digits than its factorization.

449764890566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822447.

The product of its (nonzero) digits is 313528320, while the sum is 68.

The spelling of 449764890566 in words is "four hundred forty-nine billion, seven hundred sixty-four million, eight hundred ninety thousand, five hundred sixty-six".