421305746205 has 16 divisors (see below), whose sum is σ = 674099230464. Its totient is φ = 224693052480.

The previous prime is 421305746131. The next prime is 421305746227. The reversal of 421305746205 is 502647503124.

It is not a de Polignac number, because 421305746205 - 2⁷ = 421305746077 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093852 + ... + 1427978.

It is an arithmetic number, because the mean of its divisors is an integer number (42131201904).

Almost surely, 2^421305746205 is an apocalyptic number.

It is an amenable number.

421305746205 is a deficient number, since it is larger than the sum of its proper divisors (252793484259).

421305746205 is a wasteful number, since it uses less digits than its factorization.

421305746205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418196.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 421305746205 in words is "four hundred twenty-one billion, three hundred five million, seven hundred forty-six thousand, two hundred five".