20536462043 has 4 divisors (see below), whose sum is σ = 21744489240. Its totient is φ = 19328434848.

The previous prime is 20536462039. The next prime is 20536462061. The reversal of 20536462043 is 34026463502.

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 20536462043 - 2² = 20536462039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20536461994 and 20536462012.

It is not an unprimeable number, because it can be changed into a prime (20536462003) 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, 604013573 + ... + 604013606.

It is an arithmetic number, because the mean of its divisors is an integer number (5436122310).

Almost surely, 2^20536462043 is an apocalyptic number.

20536462043 is a deficient number, since it is larger than the sum of its proper divisors (1208027197).

20536462043 is a wasteful number, since it uses less digits than its factorization.

20536462043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208027196.

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 20536462043 in words is "twenty billion, five hundred thirty-six million, four hundred sixty-two thousand, forty-three".