20452864444 has 6 divisors (see below), whose sum is σ = 35792512784. Its totient is φ = 10226432220.

The previous prime is 20452864433. The next prime is 20452864483. The reversal of 20452864444 is 44446825402.

It is a self number, because there is not a number n which added to its sum of digits gives 20452864444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2556608052 + ... + 2556608059.

Almost surely, 2^20452864444 is an apocalyptic number.

It is an amenable number.

20452864444 is a deficient number, since it is larger than the sum of its proper divisors (15339648340).

20452864444 is a wasteful number, since it uses less digits than its factorization.

20452864444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113216115 (or 5113216113 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 43.

The spelling of 20452864444 in words is "twenty billion, four hundred fifty-two million, eight hundred sixty-four thousand, four hundred forty-four".