18850518763 has 2 divisors, whose sum is σ = 18850518764. Its totient is φ = 18850518762.

The previous prime is 18850518707. The next prime is 18850518767. The reversal of 18850518763 is 36781505881.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18850518763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18850518763.

It is not a weakly prime, because it can be changed into another prime (18850518767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9425259381 + 9425259382.

It is an arithmetic number, because the mean of its divisors is an integer number (9425259382).

Almost surely, 2^18850518763 is an apocalyptic number.

18850518763 is a deficient number, since it is larger than the sum of its proper divisors (1).

18850518763 is an equidigital number, since it uses as much as digits as its factorization.

18850518763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 52.

The spelling of 18850518763 in words is "eighteen billion, eight hundred fifty million, five hundred eighteen thousand, seven hundred sixty-three".