449281511554 has 4 divisors (see below), whose sum is σ = 673922267334. Its totient is φ = 224640755776.

The previous prime is 449281511537. The next prime is 449281511557. The reversal of 449281511554 is 455115182944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 432891623025 + 16389888529 = 657945^2 + 128023^2 .

It is a junction number, because it is equal to n+sod(n) for n = 449281511498 and 449281511507.

It is not an unprimeable number, because it can be changed into a prime (449281511557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112320377887 + ... + 112320377890.

Almost surely, 2^449281511554 is an apocalyptic number.

449281511554 is a deficient number, since it is larger than the sum of its proper divisors (224640755780).

449281511554 is a wasteful number, since it uses less digits than its factorization.

449281511554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224640755779.

The product of its digits is 1152000, while the sum is 49.

The spelling of 449281511554 in words is "four hundred forty-nine billion, two hundred eighty-one million, five hundred eleven thousand, five hundred fifty-four".