8251723877 has 2 divisors, whose sum is σ = 8251723878. Its totient is φ = 8251723876.

The previous prime is 8251723847. The next prime is 8251723889. The reversal of 8251723877 is 7783271528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7251203716 + 1000520161 = 85154^2 + 31631^2 .

It is a cyclic number.

It is not a de Polignac number, because 8251723877 - 2⁶ = 8251723813 is a prime.

It is a super-2 number, since 2×8251723877² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8251723847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4125861938 + 4125861939.

It is an arithmetic number, because the mean of its divisors is an integer number (4125861939).

Almost surely, 2^8251723877 is an apocalyptic number.

It is an amenable number.

8251723877 is a deficient number, since it is larger than the sum of its proper divisors (1).

8251723877 is an equidigital number, since it uses as much as digits as its factorization.

8251723877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 50.

The square root of 8251723877 is about 90838.9997578133. Note that the first 3 decimals coincide. The cubic root of 8251723877 is about 2020.7607399181.

The spelling of 8251723877 in words is "eight billion, two hundred fifty-one million, seven hundred twenty-three thousand, eight hundred seventy-seven".