20452773444 has 24 divisors (see below), whose sum is σ = 47962958400. Its totient is φ = 6783331104.

The previous prime is 20452773433. The next prime is 20452773461. The reversal of 20452773444 is 44437725402.

It is a super-2 number, since 2×20452773444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20452773396 and 20452773405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4280019 + ... + 4284794.

It is an arithmetic number, because the mean of its divisors is an integer number (1998456600).

Almost surely, 2^20452773444 is an apocalyptic number.

It is an amenable number.

20452773444 is an abundant number, since it is smaller than the sum of its proper divisors (27510184956).

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

20452773444 is a wasteful number, since it uses less digits than its factorization.

20452773444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8565019 (or 8565017 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 42.

The spelling of 20452773444 in words is "twenty billion, four hundred fifty-two million, seven hundred seventy-three thousand, four hundred forty-four".