8778312040919 has 2 divisors, whose sum is σ = 8778312040920. Its totient is φ = 8778312040918.

The previous prime is 8778312040913. The next prime is 8778312040987. The reversal of 8778312040919 is 9190402138778.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8778312040919 is a prime.

It is a super-2 number, since 2×8778312040919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8778312040913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4389156020459 + 4389156020460.

It is an arithmetic number, because the mean of its divisors is an integer number (4389156020460).

Almost surely, 2^{8778312040919} is an apocalyptic number.

8778312040919 is a deficient number, since it is larger than the sum of its proper divisors (1).

8778312040919 is an equidigital number, since it uses as much as digits as its factorization.

8778312040919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 8778312040919 in words is "eight trillion, seven hundred seventy-eight billion, three hundred twelve million, forty thousand, nine hundred nineteen".