18853129309759 has 2 divisors, whose sum is σ = 18853129309760. Its totient is φ = 18853129309758.

The previous prime is 18853129309739. The next prime is 18853129309771. The reversal of 18853129309759 is 95790392135881.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18853129309759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18853129309739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9426564654879 + 9426564654880.

It is an arithmetic number, because the mean of its divisors is an integer number (9426564654880).

Almost surely, 2^{18853129309759} is an apocalyptic number.

18853129309759 is a deficient number, since it is larger than the sum of its proper divisors (1).

18853129309759 is an equidigital number, since it uses as much as digits as its factorization.

18853129309759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 146966400, while the sum is 70.

The spelling of 18853129309759 in words is "eighteen trillion, eight hundred fifty-three billion, one hundred twenty-nine million, three hundred nine thousand, seven hundred fifty-nine".