420265204356259 has 2 divisors, whose sum is σ = 420265204356260. Its totient is φ = 420265204356258.

The previous prime is 420265204356169. The next prime is 420265204356287. The reversal of 420265204356259 is 952653402562024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420265204356259 - 2²³ = 420265195967651 is a prime.

It is not a weakly prime, because it can be changed into another prime (420265204356299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210132602178129 + 210132602178130.

It is an arithmetic number, because the mean of its divisors is an integer number (210132602178130).

Almost surely, 2^{420265204356259} is an apocalyptic number.

420265204356259 is a deficient number, since it is larger than the sum of its proper divisors (1).

420265204356259 is an equidigital number, since it uses as much as digits as its factorization.

420265204356259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104000, while the sum is 55.

The spelling of 420265204356259 in words is "four hundred twenty trillion, two hundred sixty-five billion, two hundred four million, three hundred fifty-six thousand, two hundred fifty-nine".