421624707985 has 16 divisors (see below), whose sum is σ = 545039873280. Its totient is φ = 311255904960.

The previous prime is 421624707967. The next prime is 421624708039. The reversal of 421624707985 is 589707426124.

It is not a de Polignac number, because 421624707985 - 2⁹ = 421624707473 is a prime.

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, 808965 + ... + 1223794.

It is an arithmetic number, because the mean of its divisors is an integer number (34064992080).

Almost surely, 2^421624707985 is an apocalyptic number.

It is an amenable number.

421624707985 is a deficient number, since it is larger than the sum of its proper divisors (123415165295).

421624707985 is a wasteful number, since it uses less digits than its factorization.

421624707985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035968.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 421624707985 in words is "four hundred twenty-one billion, six hundred twenty-four million, seven hundred seven thousand, nine hundred eighty-five".