32421421444412 has 144 divisors (see below), whose sum is σ = 76828571822016. Its totient is φ = 11649045196800.

The previous prime is 32421421444397. The next prime is 32421421444439. The reversal of 32421421444412 is 21444412412423.

It is a super-2 number, since 2×32421421444412² (a number of 28 digits) contains 22 as substring.

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, 46383788 + ... + 47077580.

It is an arithmetic number, because the mean of its divisors is an integer number (533531748764).

Almost surely, 2^{32421421444412} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32421421444412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38414285911008).

32421421444412 is an abundant number, since it is smaller than the sum of its proper divisors (44407150377604).

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

32421421444412 is a wasteful number, since it uses less digits than its factorization.

32421421444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694900 (or 694887 counting only the distinct ones).

The product of its digits is 196608, while the sum is 38.

Adding to 32421421444412 its reverse (21444412412423), we get a palindrome (53865833856835).

The spelling of 32421421444412 in words is "thirty-two trillion, four hundred twenty-one billion, four hundred twenty-one million, four hundred forty-four thousand, four hundred twelve".