20144986759847 has 2 divisors, whose sum is σ = 20144986759848. Its totient is φ = 20144986759846.

The previous prime is 20144986759757. The next prime is 20144986759897. The reversal of 20144986759847 is 74895768944102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20144986759847 - 2¹⁶ = 20144986694311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20144986759897) 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, 10072493379923 + 10072493379924.

It is an arithmetic number, because the mean of its divisors is an integer number (10072493379924).

Almost surely, 2^{20144986759847} is an apocalyptic number.

20144986759847 is a deficient number, since it is larger than the sum of its proper divisors (1).

20144986759847 is an equidigital number, since it uses as much as digits as its factorization.

20144986759847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 975421440, while the sum is 74.

The spelling of 20144986759847 in words is "twenty trillion, one hundred forty-four billion, nine hundred eighty-six million, seven hundred fifty-nine thousand, eight hundred forty-seven".