4455112551421 has 4 divisors (see below), whose sum is σ = 5091557201632. Its totient is φ = 3818667901212.

The previous prime is 4455112551401. The next prime is 4455112551437. The reversal of 4455112551421 is 1241552115544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4455112551421 - 2⁷ = 4455112551293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455112551401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318222325095 + ... + 318222325108.

It is an arithmetic number, because the mean of its divisors is an integer number (1272889300408).

Almost surely, 2^{4455112551421} is an apocalyptic number.

It is an amenable number.

4455112551421 is a deficient number, since it is larger than the sum of its proper divisors (636444650211).

4455112551421 is an equidigital number, since it uses as much as digits as its factorization.

4455112551421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636444650210.

The product of its digits is 160000, while the sum is 40.

Adding to 4455112551421 its reverse (1241552115544), we get a palindrome (5696664666965).

The spelling of 4455112551421 in words is "four trillion, four hundred fifty-five billion, one hundred twelve million, five hundred fifty-one thousand, four hundred twenty-one".