452112209999 has 4 divisors (see below), whose sum is σ = 456337557864. Its totient is φ = 447886862136.

The previous prime is 452112209971. The next prime is 452112210001. The reversal of 452112209999 is 999902211254.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452112209999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 452112209999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452112209959) 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, 2112673772 + ... + 2112673985.

It is an arithmetic number, because the mean of its divisors is an integer number (114084389466).

Almost surely, 2^452112209999 is an apocalyptic number.

452112209999 is a deficient number, since it is larger than the sum of its proper divisors (4225347865).

452112209999 is a wasteful number, since it uses less digits than its factorization.

452112209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225347864.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 452112209999 in words is "four hundred fifty-two billion, one hundred twelve million, two hundred nine thousand, nine hundred ninety-nine".