44123255421 has 64 divisors (see below), whose sum is σ = 72256665600. Its totient is φ = 23376439296.

The previous prime is 44123255377. The next prime is 44123255447. The reversal of 44123255421 is 12455232144.

It is not a de Polignac number, because 44123255421 - 2⁶ = 44123255357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44123255471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11228185 + ... + 11232113.

It is an arithmetic number, because the mean of its divisors is an integer number (1129010400).

Almost surely, 2^44123255421 is an apocalyptic number.

It is an amenable number.

44123255421 is a deficient number, since it is larger than the sum of its proper divisors (28133410179).

44123255421 is a wasteful number, since it uses less digits than its factorization.

44123255421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418.

The product of its digits is 38400, while the sum is 33.

Adding to 44123255421 its reverse (12455232144), we get a palindrome (56578487565).

The spelling of 44123255421 in words is "forty-four billion, one hundred twenty-three million, two hundred fifty-five thousand, four hundred twenty-one".