361240844449 has 4 divisors (see below), whose sum is σ = 364964976964. Its totient is φ = 357516711936.

The previous prime is 361240844369. The next prime is 361240844507. The reversal of 361240844449 is 944448042163.

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 293520150625 + 67720693824 = 541775^2 + 260232^2 .

It is a cyclic number.

It is not a de Polignac number, because 361240844449 - 2¹⁷ = 361240713377 is a prime.

It is a super-2 number, since 2×361240844449² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361240842449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862066112 + ... + 1862066305.

It is an arithmetic number, because the mean of its divisors is an integer number (91241244241).

Almost surely, 2^361240844449 is an apocalyptic number.

It is an amenable number.

361240844449 is a deficient number, since it is larger than the sum of its proper divisors (3724132515).

361240844449 is an equidigital number, since it uses as much as digits as its factorization.

361240844449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724132514.

The product of its (nonzero) digits is 2654208, while the sum is 49.

The spelling of 361240844449 in words is "three hundred sixty-one billion, two hundred forty million, eight hundred forty-four thousand, four hundred forty-nine".