420251444105 has 8 divisors (see below), whose sum is σ = 506083719552. Its totient is φ = 335013164208.

The previous prime is 420251444099. The next prime is 420251444153. The reversal of 420251444105 is 501444152024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420251444105 - 2¹⁴ = 420251427721 is a prime.

It is a super-2 number, since 2×420251444105² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148497329 + ... + 148500158.

It is an arithmetic number, because the mean of its divisors is an integer number (63260464944).

Almost surely, 2^420251444105 is an apocalyptic number.

It is an amenable number.

420251444105 is a deficient number, since it is larger than the sum of its proper divisors (85832275447).

420251444105 is a wasteful number, since it uses less digits than its factorization.

420251444105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296997775.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 420251444105 its reverse (501444152024), we get a palindrome (921695596129).

The spelling of 420251444105 in words is "four hundred twenty billion, two hundred fifty-one million, four hundred forty-four thousand, one hundred five".