20109860263 has 2 divisors, whose sum is σ = 20109860264. Its totient is φ = 20109860262.

The previous prime is 20109860257. The next prime is 20109860297. The reversal of 20109860263 is 36206890102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20109860263 - 2¹⁷ = 20109729191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20109860663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10054930131 + 10054930132.

It is an arithmetic number, because the mean of its divisors is an integer number (10054930132).

Almost surely, 2^20109860263 is an apocalyptic number.

20109860263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20109860263 is an equidigital number, since it uses as much as digits as its factorization.

20109860263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 20109860263 in words is "twenty billion, one hundred nine million, eight hundred sixty thousand, two hundred sixty-three".