20004420626444 has 12 divisors (see below), whose sum is σ = 35084339460744. Its totient is φ = 9980323637664.

The previous prime is 20004420626441. The next prime is 20004420626507. The reversal of 20004420626444 is 44462602440002.

It is a junction number, because it is equal to n+sod(n) for n = 20004420626398 and 20004420626407.

It is not an unprimeable number, because it can be changed into a prime (20004420626441) 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, 5471666834 + ... + 5471670489.

It is an arithmetic number, because the mean of its divisors is an integer number (2923694955062).

Almost surely, 2^{20004420626444} is an apocalyptic number.

It is an amenable number.

20004420626444 is a deficient number, since it is larger than the sum of its proper divisors (15079918834300).

20004420626444 is a wasteful number, since it uses less digits than its factorization.

20004420626444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10943337784 (or 10943337782 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 20004420626444 in words is "twenty trillion, four billion, four hundred twenty million, six hundred twenty-six thousand, four hundred forty-four".