20835490619863 has 2 divisors, whose sum is σ = 20835490619864. Its totient is φ = 20835490619862.

The previous prime is 20835490619833. The next prime is 20835490619887. The reversal of 20835490619863 is 36891609453802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20835490619863 - 2⁵ = 20835490619831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20835490619795 and 20835490619804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20835490619813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10417745309931 + 10417745309932.

It is an arithmetic number, because the mean of its divisors is an integer number (10417745309932).

Almost surely, 2^{20835490619863} is an apocalyptic number.

20835490619863 is a deficient number, since it is larger than the sum of its proper divisors (1).

20835490619863 is an equidigital number, since it uses as much as digits as its factorization.

20835490619863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 20835490619863 in words is "twenty trillion, eight hundred thirty-five billion, four hundred ninety million, six hundred nineteen thousand, eight hundred sixty-three".