451421121304 has 8 divisors (see below), whose sum is σ = 846414602460. Its totient is φ = 225710560648.

The previous prime is 451421121301. The next prime is 451421121341. The reversal of 451421121304 is 403121124154.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451421121301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28213820074 + ... + 28213820089.

Almost surely, 2^451421121304 is an apocalyptic number.

It is an amenable number.

451421121304 is a deficient number, since it is larger than the sum of its proper divisors (394993481156).

451421121304 is a wasteful number, since it uses less digits than its factorization.

451421121304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56427640169 (or 56427640165 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 451421121304 its reverse (403121124154), we get a palindrome (854542245458).

The spelling of 451421121304 in words is "four hundred fifty-one billion, four hundred twenty-one million, one hundred twenty-one thousand, three hundred four".