18782877243007 has 2 divisors, whose sum is σ = 18782877243008. Its totient is φ = 18782877243006.

The previous prime is 18782877242999. The next prime is 18782877243023. The reversal of 18782877243007 is 70034277828781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18782877243007 - 2³ = 18782877242999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18782877243007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18782877243037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9391438621503 + 9391438621504.

It is an arithmetic number, because the mean of its divisors is an integer number (9391438621504).

Almost surely, 2^{18782877243007} is an apocalyptic number.

18782877243007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18782877243007 is an equidigital number, since it uses as much as digits as its factorization.

18782877243007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59006976, while the sum is 64.

The spelling of 18782877243007 in words is "eighteen trillion, seven hundred eighty-two billion, eight hundred seventy-seven million, two hundred forty-three thousand, seven".