20044684569 has 24 divisors (see below), whose sum is σ = 33074582592. Its totient is φ = 10573018560.

The previous prime is 20044684559. The next prime is 20044684573. The reversal of 20044684569 is 96548644002.

It is not a de Polignac number, because 20044684569 - 2⁷ = 20044684441 is a prime.

It is a super-2 number, since 2×20044684569² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20044684549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2820442 + ... + 2827539.

It is an arithmetic number, because the mean of its divisors is an integer number (1378107608).

Almost surely, 2^20044684569 is an apocalyptic number.

It is an amenable number.

20044684569 is a deficient number, since it is larger than the sum of its proper divisors (13029898023).

20044684569 is a wasteful number, since it uses less digits than its factorization.

20044684569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648017 (or 5648004 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 20044684569 in words is "twenty billion, forty-four million, six hundred eighty-four thousand, five hundred sixty-nine".