18620445759143 has 2 divisors, whose sum is σ = 18620445759144. Its totient is φ = 18620445759142.

The previous prime is 18620445759137. The next prime is 18620445759259. The reversal of 18620445759143 is 34195754402681.

It is a weak prime.

It is an emirp because it is prime and its reverse (34195754402681) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18620445759143 - 2³⁶ = 18551726282407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18620445759343) 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, 9310222879571 + 9310222879572.

It is an arithmetic number, because the mean of its divisors is an integer number (9310222879572).

It is a 2-persistent number, because it is pandigital, and so is 2⋅18620445759143 = 37240891518286, but 3⋅18620445759143 = 55861337277429 is not.

Almost surely, 2^{18620445759143} is an apocalyptic number.

18620445759143 is a deficient number, since it is larger than the sum of its proper divisors (1).

18620445759143 is an equidigital number, since it uses as much as digits as its factorization.

18620445759143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 18620445759143 in words is "eighteen trillion, six hundred twenty billion, four hundred forty-five million, seven hundred fifty-nine thousand, one hundred forty-three".