8277782251 has 2 divisors, whose sum is σ = 8277782252. Its totient is φ = 8277782250.

The previous prime is 8277782197. The next prime is 8277782287. The reversal of 8277782251 is 1522877728.

It is a happy number.

8277782251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8277782251 - 2²⁵ = 8244227819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8277782195 and 8277782204.

It is not a weakly prime, because it can be changed into another prime (8277782291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4138891125 + 4138891126.

It is an arithmetic number, because the mean of its divisors is an integer number (4138891126).

Almost surely, 2^8277782251 is an apocalyptic number.

8277782251 is a deficient number, since it is larger than the sum of its proper divisors (1).

8277782251 is an equidigital number, since it uses as much as digits as its factorization.

8277782251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 878080, while the sum is 49.

The square root of 8277782251 is about 90982.3183426318. The cubic root of 8277782251 is about 2022.8856456597.

The spelling of 8277782251 in words is "eight billion, two hundred seventy-seven million, seven hundred eighty-two thousand, two hundred fifty-one".