421051503455 has 48 divisors (see below), whose sum is σ = 582688598400. Its totient is φ = 289625353920.

The previous prime is 421051503421. The next prime is 421051503491. The reversal of 421051503455 is 554305150124.

It is not a de Polignac number, because 421051503455 - 2¹² = 421051499359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12273116 + ... + 12307374.

It is an arithmetic number, because the mean of its divisors is an integer number (12139345800).

Almost surely, 2^421051503455 is an apocalyptic number.

421051503455 is a deficient number, since it is larger than the sum of its proper divisors (161637094945).

421051503455 is a wasteful number, since it uses less digits than its factorization.

421051503455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34932 (or 34913 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 421051503455 its reverse (554305150124), we get a palindrome (975356653579).

The spelling of 421051503455 in words is "four hundred twenty-one billion, fifty-one million, five hundred three thousand, four hundred fifty-five".