8278945783 has 2 divisors, whose sum is σ = 8278945784. Its totient is φ = 8278945782.

The previous prime is 8278945751. The next prime is 8278945817. The reversal of 8278945783 is 3875498728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8278945783 - 2⁵ = 8278945751 is a prime.

It is a super-3 number, since 3×8278945783³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8278945733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139472891 + 4139472892.

It is an arithmetic number, because the mean of its divisors is an integer number (4139472892).

Almost surely, 2^8278945783 is an apocalyptic number.

8278945783 is a deficient number, since it is larger than the sum of its proper divisors (1).

8278945783 is an equidigital number, since it uses as much as digits as its factorization.

8278945783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27095040, while the sum is 61.

The square root of 8278945783 is about 90988.7123933513. The cubic root of 8278945783 is about 2022.9804207189.

It can be divided in two parts, 8278945 and 783, that added together give a palindrome (8279728).

The spelling of 8278945783 in words is "eight billion, two hundred seventy-eight million, nine hundred forty-five thousand, seven hundred eighty-three".