423224445205451 has 4 divisors (see below), whose sum is σ = 424179805127352. Its totient is φ = 422269085283552.

The previous prime is 423224445205403. The next prime is 423224445205489. The reversal of 423224445205451 is 154502544422324.

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 423224445205451 - 2²² = 423224441011147 is a prime.

It is a super-2 number, since 2×423224445205451² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423224445205396 and 423224445205405.

It is not an unprimeable number, because it can be changed into a prime (423224445201451) 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, 477679960286 + ... + 477679961171.

It is an arithmetic number, because the mean of its divisors is an integer number (106044951281838).

Almost surely, 2^{423224445205451} is an apocalyptic number.

423224445205451 is a deficient number, since it is larger than the sum of its proper divisors (955359921901).

423224445205451 is an equidigital number, since it uses as much as digits as its factorization.

423224445205451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955359921900.

The product of its (nonzero) digits is 6144000, while the sum is 47.

Adding to 423224445205451 its reverse (154502544422324), we get a palindrome (577726989627775).

The spelling of 423224445205451 in words is "four hundred twenty-three trillion, two hundred twenty-four billion, four hundred forty-five million, two hundred five thousand, four hundred fifty-one".