421008454650630 has 256 divisors, whose sum is σ = 1265506700083200. Its totient is φ = 87082300592640.

The previous prime is 421008454650397. The next prime is 421008454650697. The reversal of 421008454650630 is 36056454800124.

It is a self number, because there is not a number n which added to its sum of digits gives 421008454650630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2646457431 + ... + 2646616509.

It is an arithmetic number, because the mean of its divisors is an integer number (4943385547200).

Almost surely, 2^{421008454650630} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421008454650630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632753350041600).

421008454650630 is an abundant number, since it is smaller than the sum of its proper divisors (844498245432570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421008454650630 is a wasteful number, since it uses less digits than its factorization.

421008454650630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164339.

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 421008454650630 in words is "four hundred twenty-one trillion, eight billion, four hundred fifty-four million, six hundred fifty thousand, six hundred thirty".