20963098861 has 8 divisors (see below), whose sum is σ = 21491650400. Its totient is φ = 20436412752.

The previous prime is 20963098853. The next prime is 20963098873. The reversal of 20963098861 is 16889036902.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20963098861 - 2³ = 20963098853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20963098799 and 20963098808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20963098811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443586 + ... + 488563.

It is an arithmetic number, because the mean of its divisors is an integer number (2686456300).

Almost surely, 2^20963098861 is an apocalyptic number.

It is an amenable number.

20963098861 is a deficient number, since it is larger than the sum of its proper divisors (528551539).

20963098861 is an equidigital number, since it uses as much as digits as its factorization.

20963098861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932715.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 20963098861 in words is "twenty billion, nine hundred sixty-three million, ninety-eight thousand, eight hundred sixty-one".