20109143619 has 8 divisors (see below), whose sum is σ = 29791323920. Its totient is φ = 13406095728.

The previous prime is 20109143591. The next prime is 20109143641. The reversal of 20109143619 is 91634190102.

It is a happy number.

20109143619 is a `hidden beast` number, since 20 + 1 + 0 + 9 + 14 + 3 + 619 = 666.

It is not a de Polignac number, because 20109143619 - 2¹⁵ = 20109110851 is a prime.

It is a super-2 number, since 2×20109143619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20109143419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372391522 + ... + 372391575.

It is an arithmetic number, because the mean of its divisors is an integer number (3723915490).

Almost surely, 2^20109143619 is an apocalyptic number.

20109143619 is a deficient number, since it is larger than the sum of its proper divisors (9682180301).

20109143619 is an equidigital number, since it uses as much as digits as its factorization.

20109143619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744783106 (or 744783100 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 20109143619 in words is "twenty billion, one hundred nine million, one hundred forty-three thousand, six hundred nineteen".