20144411409 has 16 divisors (see below), whose sum is σ = 28477498752. Its totient is φ = 12622595328.

The previous prime is 20144411383. The next prime is 20144411411. The reversal of 20144411409 is 90411444102.

It is not a de Polignac number, because 20144411409 - 2⁵ = 20144411377 is a prime.

It is a super-2 number, since 2×20144411409² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20144411459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227914 + ... + 303699.

It is an arithmetic number, because the mean of its divisors is an integer number (1779843672).

Almost surely, 2^20144411409 is an apocalyptic number.

It is an amenable number.

20144411409 is a deficient number, since it is larger than the sum of its proper divisors (8333087343).

20144411409 is a wasteful number, since it uses less digits than its factorization.

20144411409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532376.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 20144411409 in words is "twenty billion, one hundred forty-four million, four hundred eleven thousand, four hundred nine".