1446426656447 has 4 divisors (see below), whose sum is σ = 1447854521880. Its totient is φ = 1444998791016.

The previous prime is 1446426656413. The next prime is 1446426656449. The reversal of 1446426656447 is 7446566246441.

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

It is a cyclic number.

It is not a de Polignac number, because 1446426656447 - 2²² = 1446422462143 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 (1446426656449) 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, 713931197 + ... + 713933222.

It is an arithmetic number, because the mean of its divisors is an integer number (361963630470).

Almost surely, 2^{1446426656447} is an apocalyptic number.

1446426656447 is a deficient number, since it is larger than the sum of its proper divisors (1427865433).

1446426656447 is a wasteful number, since it uses less digits than its factorization.

1446426656447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427865432.

The product of its digits is 92897280, while the sum is 59.

The spelling of 1446426656447 in words is "one trillion, four hundred forty-six billion, four hundred twenty-six million, six hundred fifty-six thousand, four hundred forty-seven".