878238151234219 has 2 divisors, whose sum is σ = 878238151234220. Its totient is φ = 878238151234218.

The previous prime is 878238151234193. The next prime is 878238151234247. The reversal of 878238151234219 is 912432151832878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878238151234219 - 2⁷ = 878238151234091 is a prime.

It is a super-2 number, since 2×878238151234219² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (878238151234319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439119075617109 + 439119075617110.

It is an arithmetic number, because the mean of its divisors is an integer number (439119075617110).

Almost surely, 2^{878238151234219} is an apocalyptic number.

878238151234219 is a deficient number, since it is larger than the sum of its proper divisors (1).

878238151234219 is an equidigital number, since it uses as much as digits as its factorization.

878238151234219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46448640, while the sum is 64.

The spelling of 878238151234219 in words is "eight hundred seventy-eight trillion, two hundred thirty-eight billion, one hundred fifty-one million, two hundred thirty-four thousand, two hundred nineteen".