4499778044609 has 2 divisors, whose sum is σ = 4499778044610. Its totient is φ = 4499778044608.

The previous prime is 4499778044527. The next prime is 4499778044743. The reversal of 4499778044609 is 9064408779944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4469587939600 + 30190105009 = 2114140^2 + 173753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4499778044609 is a prime.

It is a super-3 number, since 3×4499778044609³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4499778046609) by changing a digit.

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 as a sum of consecutive naturals, namely, 2249889022304 + 2249889022305.

It is an arithmetic number, because the mean of its divisors is an integer number (2249889022305).

Almost surely, 2^{4499778044609} is an apocalyptic number.

It is an amenable number.

4499778044609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4499778044609 is an equidigital number, since it uses as much as digits as its factorization.

4499778044609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 438939648, while the sum is 71.

The spelling of 4499778044609 in words is "four trillion, four hundred ninety-nine billion, seven hundred seventy-eight million, forty-four thousand, six hundred nine".