420453443387 has 2 divisors, whose sum is σ = 420453443388. Its totient is φ = 420453443386.

The previous prime is 420453443383. The next prime is 420453443407. The reversal of 420453443387 is 783344354024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420453443387 - 2² = 420453443383 is a prime.

It is not a weakly prime, because it can be changed into another prime (420453443383) 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 as a sum of consecutive naturals, namely, 210226721693 + 210226721694.

It is an arithmetic number, because the mean of its divisors is an integer number (210226721694).

Almost surely, 2^420453443387 is an apocalyptic number.

420453443387 is a deficient number, since it is larger than the sum of its proper divisors (1).

420453443387 is an equidigital number, since it uses as much as digits as its factorization.

420453443387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 47.

The spelling of 420453443387 in words is "four hundred twenty billion, four hundred fifty-three million, four hundred forty-three thousand, three hundred eighty-seven".