420500706513256 has 8 divisors (see below), whose sum is σ = 788438824712370. Its totient is φ = 210250353256624.

The previous prime is 420500706513247. The next prime is 420500706513353. The reversal of 420500706513256 is 652315607005024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 255677989324356 + 164822717188900 = 15989934^2 + 12838330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26281294157071 + ... + 26281294157086.

Almost surely, 2^{420500706513256} is an apocalyptic number.

It is an amenable number.

420500706513256 is a deficient number, since it is larger than the sum of its proper divisors (367938118199114).

420500706513256 is a wasteful number, since it uses less digits than its factorization.

420500706513256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52562588314163 (or 52562588314159 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 420500706513256 in words is "four hundred twenty trillion, five hundred billion, seven hundred six million, five hundred thirteen thousand, two hundred fifty-six".