1449265199849 has 4 divisors (see below), whose sum is σ = 1449518706564. Its totient is φ = 1449011693136.

The previous prime is 1449265199797. The next prime is 1449265199891. The reversal of 1449265199849 is 9489915629441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1260241986025 + 189023213824 = 1122605^2 + 434768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449265199849 - 2³² = 1444970232553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449265199449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126744782 + ... + 126756215.

It is an arithmetic number, because the mean of its divisors is an integer number (362379676641).

Almost surely, 2^{1449265199849} is an apocalyptic number.

It is an amenable number.

1449265199849 is a deficient number, since it is larger than the sum of its proper divisors (253506715).

1449265199849 is an equidigital number, since it uses as much as digits as its factorization.

1449265199849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253506714.

The product of its digits is 201553920, while the sum is 71.

The spelling of 1449265199849 in words is "one trillion, four hundred forty-nine billion, two hundred sixty-five million, one hundred ninety-nine thousand, eight hundred forty-nine".