4423321413550 has 48 divisors (see below), whose sum is σ = 9066305500560. Its totient is φ = 1595244349440.

The previous prime is 4423321413493. The next prime is 4423321413559. The reversal of 4423321413550 is 553141233244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423321413559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79101235 + ... + 79157134.

It is an arithmetic number, because the mean of its divisors is an integer number (188881364595).

Almost surely, 2^{4423321413550} is an apocalyptic number.

4423321413550 is an abundant number, since it is smaller than the sum of its proper divisors (4642984087010).

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

4423321413550 is a wasteful number, since it uses less digits than its factorization.

4423321413550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158258437 (or 158258432 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 4423321413550 its reverse (553141233244), we get a palindrome (4976462646794).

The spelling of 4423321413550 in words is "four trillion, four hundred twenty-three billion, three hundred twenty-one million, four hundred thirteen thousand, five hundred fifty".