449251356645 has 224 divisors, whose sum is σ = 1005137210112. Its totient is φ = 187606388736.

The previous prime is 449251356599. The next prime is 449251356649. The reversal of 449251356645 is 546653152944.

449251356645 is a `hidden beast` number, since 4 + 4 + 9 + 25 + 13 + 566 + 45 = 666.

It is not a de Polignac number, because 449251356645 - 2¹⁰ = 449251355621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449251356591 and 449251356600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449251356649) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 32167434 + ... + 32181396.

It is an arithmetic number, because the mean of its divisors is an integer number (4487219688).

Almost surely, 2^449251356645 is an apocalyptic number.

449251356645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

449251356645 is an abundant number, since it is smaller than the sum of its proper divisors (555885853467).

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

449251356645 is a wasteful number, since it uses less digits than its factorization.

449251356645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103 (or 14088 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 449251356645 in words is "four hundred forty-nine billion, two hundred fifty-one million, three hundred fifty-six thousand, six hundred forty-five".