449323613550 has 72 divisors (see below), whose sum is σ = 1379637466896. Its totient is φ = 102702539520.

The previous prime is 449323613527. The next prime is 449323613551. The reversal of 449323613550 is 55316323944.

449323613550 is a `hidden beast` number, since 4 + 4 + 9 + 3 + 23 + 613 + 5 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 449323613496 and 449323613505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449323613551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 71318059 + ... + 71324358.

Almost surely, 2^449323613550 is an apocalyptic number.

449323613550 is an abundant number, since it is smaller than the sum of its proper divisors (930313853346).

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

449323613550 is a wasteful number, since it uses less digits than its factorization.

449323613550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142642442 (or 142642434 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 449323613550 in words is "four hundred forty-nine billion, three hundred twenty-three million, six hundred thirteen thousand, five hundred fifty".