449777777944 has 64 divisors (see below), whose sum is σ = 927087029280. Its totient is φ = 202874880000.

The previous prime is 449777777909. The next prime is 449777777947.

449777777944 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449777777947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6777564 + ... + 6843604.

Almost surely, 2^449777777944 is an apocalyptic number.

449777777944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

449777777944 is an abundant number, since it is smaller than the sum of its proper divisors (477309251336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449777777944 is a wasteful number, since it uses less digits than its factorization.

449777777944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66652 (or 66648 counting only the distinct ones).

The product of its digits is 2439569664, while the sum is 76.

The spelling of 449777777944 in words is "four hundred forty-nine billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, nine hundred forty-four".