450354458381 has 4 divisors (see below), whose sum is σ = 450358694172. Its totient is φ = 450350222592.

The previous prime is 450354458377. The next prime is 450354458387. The reversal of 450354458381 is 183854453054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 291200536900 + 159153921481 = 539630^2 + 398941^2 .

It is a cyclic number.

It is not a de Polignac number, because 450354458381 - 2² = 450354458377 is a prime.

It is a super-2 number, since 2×450354458381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450354458387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954196 + ... + 2172461.

It is an arithmetic number, because the mean of its divisors is an integer number (112589673543).

Almost surely, 2^450354458381 is an apocalyptic number.

It is an amenable number.

450354458381 is a deficient number, since it is larger than the sum of its proper divisors (4235791).

450354458381 is a wasteful number, since it uses less digits than its factorization.

450354458381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235790.

The product of its (nonzero) digits is 4608000, while the sum is 50.

The spelling of 450354458381 in words is "four hundred fifty billion, three hundred fifty-four million, four hundred fifty-eight thousand, three hundred eighty-one".