446428864451 has 2 divisors, whose sum is σ = 446428864452. Its totient is φ = 446428864450.

The previous prime is 446428864433. The next prime is 446428864471. The reversal of 446428864451 is 154468824644.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 446428864451 - 2¹⁴ = 446428848067 is a prime.

It is not a weakly prime, because it can be changed into another prime (446428864471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223214432225 + 223214432226.

It is an arithmetic number, because the mean of its divisors is an integer number (223214432226).

Almost surely, 2^446428864451 is an apocalyptic number.

446428864451 is a deficient number, since it is larger than the sum of its proper divisors (1).

446428864451 is an equidigital number, since it uses as much as digits as its factorization.

446428864451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23592960, while the sum is 56.

The spelling of 446428864451 in words is "four hundred forty-six billion, four hundred twenty-eight million, eight hundred sixty-four thousand, four hundred fifty-one".