20411447713 has 8 divisors (see below), whose sum is σ = 20965119080. Its totient is φ = 19857882240.

The previous prime is 20411447659. The next prime is 20411447723. The reversal of 20411447713 is 31774411402.

It can be written as a sum of positive squares in 4 ways, for example, as 118875409 + 20292572304 = 10903^2 + 142452^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-20411447713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20411447723) 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, 509083 + ... + 547711.

It is an arithmetic number, because the mean of its divisors is an integer number (2620639885).

Almost surely, 2^20411447713 is an apocalyptic number.

It is an amenable number.

20411447713 is a deficient number, since it is larger than the sum of its proper divisors (553671367).

20411447713 is a wasteful number, since it uses less digits than its factorization.

20411447713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52947.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 20411447713 in words is "twenty billion, four hundred eleven million, four hundred forty-seven thousand, seven hundred thirteen".