20794604863 has 2 divisors, whose sum is σ = 20794604864. Its totient is φ = 20794604862.

The previous prime is 20794604861. The next prime is 20794604881. The reversal of 20794604863 is 36840649702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20794604863 - 2¹ = 20794604861 is a prime.

Together with 20794604861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20794604861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10397302431 + 10397302432.

It is an arithmetic number, because the mean of its divisors is an integer number (10397302432).

Almost surely, 2^20794604863 is an apocalyptic number.

20794604863 is a deficient number, since it is larger than the sum of its proper divisors (1).

20794604863 is an equidigital number, since it uses as much as digits as its factorization.

20794604863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 20794604863 in words is "twenty billion, seven hundred ninety-four million, six hundred four thousand, eight hundred sixty-three".