20194500763867 has 2 divisors, whose sum is σ = 20194500763868. Its totient is φ = 20194500763866.

The previous prime is 20194500763739. The next prime is 20194500763909. The reversal of 20194500763867 is 76836700549102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20194500763867 - 2⁷ = 20194500763739 is a prime.

It is a super-2 number, since 2×20194500763867² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20194500763667) 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, 10097250381933 + 10097250381934.

It is an arithmetic number, because the mean of its divisors is an integer number (10097250381934).

It is a 1-persistent number, because it is pandigital, but 2⋅20194500763867 = 40389001527734 is not.

Almost surely, 2^{20194500763867} is an apocalyptic number.

20194500763867 is a deficient number, since it is larger than the sum of its proper divisors (1).

20194500763867 is an equidigital number, since it uses as much as digits as its factorization.

20194500763867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 20194500763867 in words is "twenty trillion, one hundred ninety-four billion, five hundred million, seven hundred sixty-three thousand, eight hundred sixty-seven".