445354214728481 has 16 divisors (see below), whose sum is σ = 463578706690560. Its totient is φ = 427321352787840.

The previous prime is 445354214728477. The next prime is 445354214728499. The reversal of 445354214728481 is 184827412453544.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 445354214728481 - 2² = 445354214728477 is a prime.

It is a super-2 number, since 2×445354214728481² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445354214728411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49353296 + ... + 57675438.

It is an arithmetic number, because the mean of its divisors is an integer number (28973669168160).

Almost surely, 2^{445354214728481} is an apocalyptic number.

It is an amenable number.

445354214728481 is a deficient number, since it is larger than the sum of its proper divisors (18224491962079).

445354214728481 is a wasteful number, since it uses less digits than its factorization.

445354214728481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333656.

The product of its digits is 137625600, while the sum is 62.

The spelling of 445354214728481 in words is "four hundred forty-five trillion, three hundred fifty-four billion, two hundred fourteen million, seven hundred twenty-eight thousand, four hundred eighty-one".