20359688287 has 2 divisors, whose sum is σ = 20359688288. Its totient is φ = 20359688286.

The previous prime is 20359688249. The next prime is 20359688299. The reversal of 20359688287 is 78288695302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20359688287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20359688227) 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, 10179844143 + 10179844144.

It is an arithmetic number, because the mean of its divisors is an integer number (10179844144).

Almost surely, 2^20359688287 is an apocalyptic number.

20359688287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20359688287 is an equidigital number, since it uses as much as digits as its factorization.

20359688287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 20359688287 in words is "twenty billion, three hundred fifty-nine million, six hundred eighty-eight thousand, two hundred eighty-seven".