454311253421 has 4 divisors (see below), whose sum is σ = 454366604700. Its totient is φ = 454255902144.

The previous prime is 454311253391. The next prime is 454311253423. The reversal of 454311253421 is 124352113454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124352113454 = 2 ⋅62176056727.

It can be written as a sum of positive squares in 2 ways, for example, as 225553755625 + 228757497796 = 474925^2 + 478286^2 .

It is a cyclic number.

It is not a de Polignac number, because 454311253421 - 2²² = 454307059117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454311253423) 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, 27663326 + ... + 27679743.

It is an arithmetic number, because the mean of its divisors is an integer number (113591651175).

Almost surely, 2^454311253421 is an apocalyptic number.

It is an amenable number.

454311253421 is a deficient number, since it is larger than the sum of its proper divisors (55351279).

454311253421 is an equidigital number, since it uses as much as digits as its factorization.

454311253421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55351278.

The product of its digits is 57600, while the sum is 35.

Adding to 454311253421 its reverse (124352113454), we get a palindrome (578663366875).

The spelling of 454311253421 in words is "four hundred fifty-four billion, three hundred eleven million, two hundred fifty-three thousand, four hundred twenty-one".