452639968722 has 30 divisors (see below), whose sum is σ = 1014268006983. Its totient is φ = 150877135188.

The previous prime is 452639968691. The next prime is 452639968733. The reversal of 452639968722 is 227869936254.

It is a happy number.

452639968722 is a `hidden beast` number, since 4 + 526 + 3 + 9 + 9 + 6 + 87 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 226319984361 + 226319984361 = 475731^2 + 475731^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=475731.

It is a self number, because there is not a number n which added to its sum of digits gives 452639968722.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8536729 + ... + 8589587.

Almost surely, 2^452639968722 is an apocalyptic number.

452639968722 is an abundant number, since it is smaller than the sum of its proper divisors (561628038261).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

452639968722 is an frugal number, since it uses more digits than its factorization.

452639968722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105732 (or 52864 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 452639968722 in words is "four hundred fifty-two billion, six hundred thirty-nine million, nine hundred sixty-eight thousand, seven hundred twenty-two".