421144420514010 has 128 divisors (see below), whose sum is σ = 1056108213927936. Its totient is φ = 107278158577920.

The previous prime is 421144420514009. The next prime is 421144420514039. The reversal of 421144420514010 is 10415024441124.

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, 3389948595 + ... + 3390072825.

It is an arithmetic number, because the mean of its divisors is an integer number (8250845421312).

Almost surely, 2^{421144420514010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421144420514010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528054106963968).

421144420514010 is an abundant number, since it is smaller than the sum of its proper divisors (634963793413926).

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

421144420514010 is a wasteful number, since it uses less digits than its factorization.

421144420514010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130820.

The product of its (nonzero) digits is 20480, while the sum is 33.

Adding to 421144420514010 its reverse (10415024441124), we get a palindrome (431559444955134).

The spelling of 421144420514010 in words is "four hundred twenty-one trillion, one hundred forty-four billion, four hundred twenty million, five hundred fourteen thousand, ten".