20539354752043 has 2 divisors, whose sum is σ = 20539354752044. Its totient is φ = 20539354752042.

The previous prime is 20539354751999. The next prime is 20539354752061. The reversal of 20539354752043 is 34025745393502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20539354752043 - 2¹⁷ = 20539354620971 is a prime.

It is not a weakly prime, because it can be changed into another prime (20539354752643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10269677376021 + 10269677376022.

It is an arithmetic number, because the mean of its divisors is an integer number (10269677376022).

Almost surely, 2^{20539354752043} is an apocalyptic number.

20539354752043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20539354752043 is an equidigital number, since it uses as much as digits as its factorization.

20539354752043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608000, while the sum is 52.

The spelling of 20539354752043 in words is "twenty trillion, five hundred thirty-nine billion, three hundred fifty-four million, seven hundred fifty-two thousand, forty-three".