451414021423 has 4 divisors (see below), whose sum is σ = 457128123040. Its totient is φ = 445699919808.

The previous prime is 451414021391. The next prime is 451414021441. The reversal of 451414021423 is 324120414154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 451414021423 - 2⁵ = 451414021391 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 (451414021453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2857050690 + ... + 2857050847.

It is an arithmetic number, because the mean of its divisors is an integer number (114282030760).

Almost surely, 2^451414021423 is an apocalyptic number.

451414021423 is a deficient number, since it is larger than the sum of its proper divisors (5714101617).

451414021423 is an equidigital number, since it uses as much as digits as its factorization.

451414021423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714101616.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 451414021423 its reverse (324120414154), we get a palindrome (775534435577).

The spelling of 451414021423 in words is "four hundred fifty-one billion, four hundred fourteen million, twenty-one thousand, four hundred twenty-three".