2544221321432 has 16 divisors (see below), whose sum is σ = 5451902831760. Its totient is φ = 1090380566304.

The previous prime is 2544221321423. The next prime is 2544221321459. The reversal of 2544221321432 is 2341231224452.

It is a junction number, because it is equal to n+sod(n) for n = 2544221321392 and 2544221321401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22716261743 + ... + 22716261854.

It is an arithmetic number, because the mean of its divisors is an integer number (340743926985).

Almost surely, 2^{2544221321432} is an apocalyptic number.

It is an amenable number.

2544221321432 is an abundant number, since it is smaller than the sum of its proper divisors (2907681510328).

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

2544221321432 is a wasteful number, since it uses less digits than its factorization.

2544221321432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45432523610 (or 45432523606 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

Adding to 2544221321432 its reverse (2341231224452), we get a palindrome (4885452545884).

The spelling of 2544221321432 in words is "two trillion, five hundred forty-four billion, two hundred twenty-one million, three hundred twenty-one thousand, four hundred thirty-two".