20194500763739 has 2 divisors, whose sum is σ = 20194500763740. Its totient is φ = 20194500763738.

The previous prime is 20194500763681. The next prime is 20194500763867. The reversal of 20194500763739 is 93736700549102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20194500763739 is a prime.

It is a super-2 number, since 2×20194500763739² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20194500763039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10097250381869 + 10097250381870.

It is an arithmetic number, because the mean of its divisors is an integer number (10097250381870).

Almost surely, 2^{20194500763739} is an apocalyptic number.

20194500763739 is a deficient number, since it is larger than the sum of its proper divisors (1).

20194500763739 is an equidigital number, since it uses as much as digits as its factorization.

20194500763739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8573040, while the sum is 56.

The spelling of 20194500763739 in words is "twenty trillion, one hundred ninety-four billion, five hundred million, seven hundred sixty-three thousand, seven hundred thirty-nine".