421254444105 has 48 divisors (see below), whose sum is σ = 796613673024. Its totient is φ = 204229242240.

The previous prime is 421254444103. The next prime is 421254444133. The reversal of 421254444105 is 501444452124.

421254444105 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 544 + 4 + 4 + 105 = 666.

It is not a de Polignac number, because 421254444105 - 2¹ = 421254444103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421254444105.

It is not an unprimeable number, because it can be changed into a prime (421254444103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9341422 + ... + 9386408.

It is an arithmetic number, because the mean of its divisors is an integer number (16596118188).

Almost surely, 2^421254444105 is an apocalyptic number.

421254444105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

421254444105 is a deficient number, since it is larger than the sum of its proper divisors (375359228919).

421254444105 is a wasteful number, since it uses less digits than its factorization.

421254444105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63926 (or 63923 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 421254444105 its reverse (501444452124), we get a palindrome (922698896229).

The spelling of 421254444105 in words is "four hundred twenty-one billion, two hundred fifty-four million, four hundred forty-four thousand, one hundred five".