420426547199 has 2 divisors, whose sum is σ = 420426547200. Its totient is φ = 420426547198.

The previous prime is 420426547187. The next prime is 420426547217. The reversal of 420426547199 is 991745624024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420426547199 - 2¹⁶ = 420426481663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420426547199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420426547129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210213273599 + 210213273600.

It is an arithmetic number, because the mean of its divisors is an integer number (210213273600).

Almost surely, 2^420426547199 is an apocalyptic number.

420426547199 is a deficient number, since it is larger than the sum of its proper divisors (1).

420426547199 is an equidigital number, since it uses as much as digits as its factorization.

420426547199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 420426547199 in words is "four hundred twenty billion, four hundred twenty-six million, five hundred forty-seven thousand, one hundred ninety-nine".