449021123586 has 96 divisors (see below), whose sum is σ = 1130519534976. Its totient is φ = 126140544000.

The previous prime is 449021123531. The next prime is 449021123587. The reversal of 449021123586 is 685321120944.

449021123586 is a `hidden beast` number, since 4 + 49 + 0 + 2 + 1 + 1 + 23 + 586 = 666.

It is not an unprimeable number, because it can be changed into a prime (449021123587) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23363521 + ... + 23382731.

It is an arithmetic number, because the mean of its divisors is an integer number (11776245156).

Almost surely, 2^449021123586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449021123586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565259767488).

449021123586 is an abundant number, since it is smaller than the sum of its proper divisors (681498411390).

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

449021123586 is a wasteful number, since it uses less digits than its factorization.

449021123586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22328 (or 22325 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 449021123586 in words is "four hundred forty-nine billion, twenty-one million, one hundred twenty-three thousand, five hundred eighty-six".