452449716397 has 4 divisors (see below), whose sum is σ = 517085390176. Its totient is φ = 387814042620.

The previous prime is 452449716337. The next prime is 452449716421. The reversal of 452449716397 is 793617944254.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793617944254 = 2 ⋅396808972127.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452449716397 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 (452449716337) 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, 32317836879 + ... + 32317836892.

It is an arithmetic number, because the mean of its divisors is an integer number (129271347544).

Almost surely, 2^452449716397 is an apocalyptic number.

It is an amenable number.

452449716397 is a deficient number, since it is larger than the sum of its proper divisors (64635673779).

452449716397 is an equidigital number, since it uses as much as digits as its factorization.

452449716397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64635673778.

The product of its digits is 45722880, while the sum is 61.

The spelling of 452449716397 in words is "four hundred fifty-two billion, four hundred forty-nine million, seven hundred sixteen thousand, three hundred ninety-seven".