450031174300021 has 4 divisors (see below), whose sum is σ = 454013751063852. Its totient is φ = 446048597536192.

The previous prime is 450031174299983. The next prime is 450031174300027. The reversal of 450031174300021 is 120003471130054.

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 237095663163921 + 212935511136100 = 15397911^2 + 14592310^2 .

It is a cyclic number.

It is not a de Polignac number, because 450031174300021 - 2³⁵ = 449996814561653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450031174300027) 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, 1991288381746 + ... + 1991288381971.

It is an arithmetic number, because the mean of its divisors is an integer number (113503437765963).

Almost surely, 2^{450031174300021} is an apocalyptic number.

It is an amenable number.

450031174300021 is a deficient number, since it is larger than the sum of its proper divisors (3982576763831).

450031174300021 is a wasteful number, since it uses less digits than its factorization.

450031174300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982576763830.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 450031174300021 in words is "four hundred fifty trillion, thirty-one billion, one hundred seventy-four million, three hundred thousand, twenty-one".