421424124553250 has 128 divisors (see below), whose sum is σ = 1022064404175360. Its totient is φ = 126354115641600.

The previous prime is 421424124553247. The next prime is 421424124553277. The reversal of 421424124553250 is 52355421424124.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 487045049 + ... + 487909548.

It is an arithmetic number, because the mean of its divisors is an integer number (7984878157620).

Almost surely, 2^{421424124553250} is an apocalyptic number.

421424124553250 is an abundant number, since it is smaller than the sum of its proper divisors (600640279622110).

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

421424124553250 is a wasteful number, since it uses less digits than its factorization.

421424124553250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974954653 (or 974954643 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 421424124553250 its reverse (52355421424124), we get a palindrome (473779545977374).

The spelling of 421424124553250 in words is "four hundred twenty-one trillion, four hundred twenty-four billion, one hundred twenty-four million, five hundred fifty-three thousand, two hundred fifty".