1446413045621 has 4 divisors (see below), whose sum is σ = 1446980491500. Its totient is φ = 1445845599744.

The previous prime is 1446413045507. The next prime is 1446413045639. The reversal of 1446413045621 is 1265403146441.

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 863802948100 + 582610097521 = 929410^2 + 763289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1446413045621 is a prime.

It is a super-2 number, since 2×1446413045621² (a number of 25 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 (1446413045681) 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, 283719116 + ... + 283724213.

It is an arithmetic number, because the mean of its divisors is an integer number (361745122875).

Almost surely, 2^{1446413045621} is an apocalyptic number.

It is an amenable number.

1446413045621 is a deficient number, since it is larger than the sum of its proper divisors (567445879).

1446413045621 is an equidigital number, since it uses as much as digits as its factorization.

1446413045621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567445878.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 1446413045621 in words is "one trillion, four hundred forty-six billion, four hundred thirteen million, forty-five thousand, six hundred twenty-one".