20863903219 has 2 divisors, whose sum is σ = 20863903220. Its totient is φ = 20863903218.

The previous prime is 20863903213. The next prime is 20863903237. The reversal of 20863903219 is 91230936802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20863903219 - 2⁵ = 20863903187 is a prime.

It is a super-2 number, since 2×20863903219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20863903213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10431951609 + 10431951610.

It is an arithmetic number, because the mean of its divisors is an integer number (10431951610).

Almost surely, 2^20863903219 is an apocalyptic number.

20863903219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20863903219 is an equidigital number, since it uses as much as digits as its factorization.

20863903219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 20863903219 in words is "twenty billion, eight hundred sixty-three million, nine hundred three thousand, two hundred nineteen".