420527217618239 has 2 divisors, whose sum is σ = 420527217618240. Its totient is φ = 420527217618238.

The previous prime is 420527217618173. The next prime is 420527217618317. The reversal of 420527217618239 is 932816712725024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420527217618239 is a prime.

It is a super-2 number, since 2×420527217618239² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420527217618439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210263608809119 + 210263608809120.

It is an arithmetic number, because the mean of its divisors is an integer number (210263608809120).

It is a 1-persistent number, because it is pandigital, but 2⋅420527217618239 = 841054435236478 is not.

Almost surely, 2^{420527217618239} is an apocalyptic number.

420527217618239 is a deficient number, since it is larger than the sum of its proper divisors (1).

420527217618239 is an equidigital number, since it uses as much as digits as its factorization.

420527217618239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 420527217618239 in words is "four hundred twenty trillion, five hundred twenty-seven billion, two hundred seventeen million, six hundred eighteen thousand, two hundred thirty-nine".