20327775043 has 4 divisors (see below), whose sum is σ = 21397657960. Its totient is φ = 19257892128.

The previous prime is 20327775037. The next prime is 20327775071. The reversal of 20327775043 is 34057772302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20327775043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20327774987 and 20327775005.

It is not an unprimeable number, because it can be changed into a prime (20327775073) 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, 534941430 + ... + 534941467.

It is an arithmetic number, because the mean of its divisors is an integer number (5349414490).

Almost surely, 2^20327775043 is an apocalyptic number.

20327775043 is a deficient number, since it is larger than the sum of its proper divisors (1069882917).

20327775043 is a wasteful number, since it uses less digits than its factorization.

20327775043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069882916.

The product of its (nonzero) digits is 246960, while the sum is 40.

The spelling of 20327775043 in words is "twenty billion, three hundred twenty-seven million, seven hundred seventy-five thousand, forty-three".