420726202161263 has 8 divisors (see below), whose sum is σ = 444096472327920. Its totient is φ = 398582717830488.

The previous prime is 420726202161241. The next prime is 420726202161269. The reversal of 420726202161263 is 362161202627024.

It is not a de Polignac number, because 420726202161263 - 2²⁸ = 420725933725807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420726202161269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30669639020 + ... + 30669652737.

It is an arithmetic number, because the mean of its divisors is an integer number (55512059040990).

Almost surely, 2^{420726202161263} is an apocalyptic number.

420726202161263 is a deficient number, since it is larger than the sum of its proper divisors (23370270166657).

420726202161263 is an frugal number, since it uses more digits than its factorization.

420726202161263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61339291814 (or 61339291776 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

Adding to 420726202161263 its reverse (362161202627024), we get a palindrome (782887404788287).

The spelling of 420726202161263 in words is "four hundred twenty trillion, seven hundred twenty-six billion, two hundred two million, one hundred sixty-one thousand, two hundred sixty-three".