420933897667 has 2 divisors, whose sum is σ = 420933897668. Its totient is φ = 420933897666.

The previous prime is 420933897649. The next prime is 420933897793. The reversal of 420933897667 is 766798339024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420933897667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420933897599 and 420933897608.

It is not a weakly prime, because it can be changed into another prime (420933897647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210466948833 + 210466948834.

It is an arithmetic number, because the mean of its divisors is an integer number (210466948834).

Almost surely, 2^420933897667 is an apocalyptic number.

420933897667 is a deficient number, since it is larger than the sum of its proper divisors (1).

420933897667 is an equidigital number, since it uses as much as digits as its factorization.

420933897667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82301184, while the sum is 64.

The spelling of 420933897667 in words is "four hundred twenty billion, nine hundred thirty-three million, eight hundred ninety-seven thousand, six hundred sixty-seven".