420843418471725 has 24 divisors (see below), whose sum is σ = 732415212500640. Its totient is φ = 212636674595520.

The previous prime is 420843418471699. The next prime is 420843418471733. The reversal of 420843418471725 is 527174814348024.

It is not a de Polignac number, because 420843418471725 - 2¹⁰ = 420843418470701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147664355934 + ... + 147664358783.

It is an arithmetic number, because the mean of its divisors is an integer number (30517300520860).

Almost surely, 2^{420843418471725} is an apocalyptic number.

It is an amenable number.

420843418471725 is a deficient number, since it is larger than the sum of its proper divisors (311571794028915).

420843418471725 is a wasteful number, since it uses less digits than its factorization.

420843418471725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295328714749 (or 295328714744 counting only the distinct ones).

The product of its (nonzero) digits is 48168960, while the sum is 60.

The spelling of 420843418471725 in words is "four hundred twenty trillion, eight hundred forty-three billion, four hundred eighteen million, four hundred seventy-one thousand, seven hundred twenty-five".