8101778411 has 2 divisors, whose sum is σ = 8101778412. Its totient is φ = 8101778410.

The previous prime is 8101778329. The next prime is 8101778413. The reversal of 8101778411 is 1148771018.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8101778411 - 2¹⁴ = 8101762027 is a prime.

Together with 8101778413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8101778413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4050889205 + 4050889206.

It is an arithmetic number, because the mean of its divisors is an integer number (4050889206).

Almost surely, 2^8101778411 is an apocalyptic number.

8101778411 is a deficient number, since it is larger than the sum of its proper divisors (1).

8101778411 is an equidigital number, since it uses as much as digits as its factorization.

8101778411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 38.

The square root of 8101778411 is about 90009.8795188617. The cubic root of 8101778411 is about 2008.4458181235.

The spelling of 8101778411 in words is "eight billion, one hundred one million, seven hundred seventy-eight thousand, four hundred eleven".