18870968564419 has 2 divisors, whose sum is σ = 18870968564420. Its totient is φ = 18870968564418.

The previous prime is 18870968564389. The next prime is 18870968564453. The reversal of 18870968564419 is 91446586907881.

It is a weak prime.

It is an emirp because it is prime and its reverse (91446586907881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18870968564419 - 2⁵ = 18870968564387 is a prime.

It is a super-2 number, since 2×18870968564419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18870968564489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9435484282209 + 9435484282210.

It is an arithmetic number, because the mean of its divisors is an integer number (9435484282210).

Almost surely, 2^{18870968564419} is an apocalyptic number.

18870968564419 is a deficient number, since it is larger than the sum of its proper divisors (1).

18870968564419 is an equidigital number, since it uses as much as digits as its factorization.

18870968564419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 836075520, while the sum is 76.

The spelling of 18870968564419 in words is "eighteen trillion, eight hundred seventy billion, nine hundred sixty-eight million, five hundred sixty-four thousand, four hundred nineteen".