20983927763 has 2 divisors, whose sum is σ = 20983927764. Its totient is φ = 20983927762.

The previous prime is 20983927753. The next prime is 20983927829. The reversal of 20983927763 is 36772938902.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20983927763 - 2⁸ = 20983927507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20983927699 and 20983927708.

It is not a weakly prime, because it can be changed into another prime (20983927733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10491963881 + 10491963882.

It is an arithmetic number, because the mean of its divisors is an integer number (10491963882).

Almost surely, 2^20983927763 is an apocalyptic number.

20983927763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20983927763 is an equidigital number, since it uses as much as digits as its factorization.

20983927763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 20983927763 in words is "twenty billion, nine hundred eighty-three million, nine hundred twenty-seven thousand, seven hundred sixty-three".