449634158641 has 8 divisors (see below), whose sum is σ = 458631580968. Its totient is φ = 440689200000.

The previous prime is 449634158639. The next prime is 449634158647. The reversal of 449634158641 is 146851436944.

It can be written as a sum of positive squares in 4 ways, for example, as 23714768016 + 425919390625 = 153996^2 + 652625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449634158641 - 2¹ = 449634158639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449634158647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13098610 + ... + 13132891.

It is an arithmetic number, because the mean of its divisors is an integer number (57328947621).

Almost surely, 2^449634158641 is an apocalyptic number.

It is an amenable number.

449634158641 is a deficient number, since it is larger than the sum of its proper divisors (8997422327).

449634158641 is a wasteful number, since it uses less digits than its factorization.

449634158641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26231843.

The product of its digits is 9953280, while the sum is 55.

The spelling of 449634158641 in words is "four hundred forty-nine billion, six hundred thirty-four million, one hundred fifty-eight thousand, six hundred forty-one".