445770352784021 has 8 divisors (see below), whose sum is σ = 448489745811744. Its totient is φ = 443053779244560.

The previous prime is 445770352783981. The next prime is 445770352784033. The reversal of 445770352784021 is 120487253077544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445770352784021 - 2¹⁴ = 445770352767637 is a prime.

It is a super-2 number, since 2×445770352784021² (a number of 30 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 (445770352784621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704554895 + ... + 705187308.

It is an arithmetic number, because the mean of its divisors is an integer number (56061218226468).

Almost surely, 2^{445770352784021} is an apocalyptic number.

It is an amenable number.

445770352784021 is a deficient number, since it is larger than the sum of its proper divisors (2719393027723).

445770352784021 is a wasteful number, since it uses less digits than its factorization.

445770352784021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409744131.

The product of its (nonzero) digits is 52684800, while the sum is 59.

The spelling of 445770352784021 in words is "four hundred forty-five trillion, seven hundred seventy billion, three hundred fifty-two million, seven hundred eighty-four thousand, twenty-one".