2278008671 has 2 divisors, whose sum is σ = 2278008672. Its totient is φ = 2278008670.

The previous prime is 2278008661. The next prime is 2278008673. The reversal of 2278008671 is 1768008722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2278008671 is a prime.

It is a Sophie Germain prime.

Together with 2278008673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2278008673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139004335 + 1139004336.

It is an arithmetic number, because the mean of its divisors is an integer number (1139004336).

Almost surely, 2^2278008671 is an apocalyptic number.

2278008671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278008671 is an equidigital number, since it uses as much as digits as its factorization.

2278008671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 2278008671 is about 47728.4890919459. The cubic root of 2278008671 is about 1315.7855852345.

The spelling of 2278008671 in words is "two billion, two hundred seventy-eight million, eight thousand, six hundred seventy-one".