449427053137 has 4 divisors (see below), whose sum is σ = 449428412340. Its totient is φ = 449425693936.

The previous prime is 449427053071. The next prime is 449427053171. The reversal of 449427053137 is 731350724944.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 300584641536 + 148842411601 = 548256^2 + 385801^2 .

It is a cyclic number.

It is not a de Polignac number, because 449427053137 - 2²³ = 449418664529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449427056137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172563 + ... + 963655.

It is an arithmetic number, because the mean of its divisors is an integer number (112357103085).

Almost surely, 2^449427053137 is an apocalyptic number.

It is an amenable number.

449427053137 is a deficient number, since it is larger than the sum of its proper divisors (1359203).

449427053137 is an equidigital number, since it uses as much as digits as its factorization.

449427053137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359202.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 449427053137 in words is "four hundred forty-nine billion, four hundred twenty-seven million, fifty-three thousand, one hundred thirty-seven".