20424490763 has 2 divisors, whose sum is σ = 20424490764. Its totient is φ = 20424490762.

The previous prime is 20424490747. The next prime is 20424490769. The reversal of 20424490763 is 36709442402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20424490763 - 2⁴ = 20424490747 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20424490763.

It is not a weakly prime, because it can be changed into another prime (20424490769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212245381 + 10212245382.

It is an arithmetic number, because the mean of its divisors is an integer number (10212245382).

Almost surely, 2^20424490763 is an apocalyptic number.

20424490763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424490763 is an equidigital number, since it uses as much as digits as its factorization.

20424490763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 20424490763 in words is "twenty billion, four hundred twenty-four million, four hundred ninety thousand, seven hundred sixty-three".