20069848543 has 4 divisors (see below), whose sum is σ = 20612276920. Its totient is φ = 19527420168.

The previous prime is 20069848517. The next prime is 20069848573. The reversal of 20069848543 is 34584896002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20069848543 - 2²⁵ = 20036294111 is a prime.

It is a super-3 number, since 3×20069848543³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20069848573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271214133 + ... + 271214206.

It is an arithmetic number, because the mean of its divisors is an integer number (5153069230).

Almost surely, 2^20069848543 is an apocalyptic number.

20069848543 is a deficient number, since it is larger than the sum of its proper divisors (542428377).

20069848543 is an equidigital number, since it uses as much as digits as its factorization.

20069848543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542428376.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 20069848543 in words is "twenty billion, sixty-nine million, eight hundred forty-eight thousand, five hundred forty-three".