421663084730 has 64 divisors (see below), whose sum is σ = 791142992640. Its totient is φ = 161614139904.

The previous prime is 421663084729. The next prime is 421663084747. The reversal of 421663084730 is 37480366124.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20733827 + ... + 20754153.

It is an arithmetic number, because the mean of its divisors is an integer number (12361609260).

Almost surely, 2^421663084730 is an apocalyptic number.

421663084730 is a deficient number, since it is larger than the sum of its proper divisors (369479907910).

421663084730 is a wasteful number, since it uses less digits than its factorization.

421663084730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20903.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 421663084730 in words is "four hundred twenty-one billion, six hundred sixty-three million, eighty-four thousand, seven hundred thirty".