20306374449 has 8 divisors (see below), whose sum is σ = 27446058912. Its totient is φ = 13352136480.

The previous prime is 20306374433. The next prime is 20306374453. The reversal of 20306374449 is 94447360302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20306374449 - 2⁴ = 20306374433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20306374449.

It is not an unprimeable number, because it can be changed into a prime (20306374409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46361367 + ... + 46361804.

It is an arithmetic number, because the mean of its divisors is an integer number (3430757364).

Almost surely, 2^20306374449 is an apocalyptic number.

It is an amenable number.

20306374449 is a deficient number, since it is larger than the sum of its proper divisors (7139684463).

20306374449 is an equidigital number, since it uses as much as digits as its factorization.

20306374449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92723247.

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 20306374449 in words is "twenty billion, three hundred six million, three hundred seventy-four thousand, four hundred forty-nine".