8278949101 has 2 divisors, whose sum is σ = 8278949102. Its totient is φ = 8278949100.

The previous prime is 8278949099. The next prime is 8278949167. The reversal of 8278949101 is 1019498728.

8278949101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7950397225 + 328551876 = 89165^2 + 18126^2 .

It is a cyclic number.

It is not a de Polignac number, because 8278949101 - 2¹ = 8278949099 is a prime.

Together with 8278949099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8278949501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139474550 + 4139474551.

It is an arithmetic number, because the mean of its divisors is an integer number (4139474551).

Almost surely, 2^8278949101 is an apocalyptic number.

It is an amenable number.

8278949101 is a deficient number, since it is larger than the sum of its proper divisors (1).

8278949101 is an equidigital number, since it uses as much as digits as its factorization.

8278949101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 8278949101 is about 90988.7306263803. The cubic root of 8278949101 is about 2022.9806909727.

The spelling of 8278949101 in words is "eight billion, two hundred seventy-eight million, nine hundred forty-nine thousand, one hundred one".