8272031813 has 2 divisors, whose sum is σ = 8272031814. Its totient is φ = 8272031812.

The previous prime is 8272031791. The next prime is 8272031827. The reversal of 8272031813 is 3181302728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6018346084 + 2253685729 = 77578^2 + 47473^2 .

It is a cyclic number.

It is not a de Polignac number, because 8272031813 - 2⁶ = 8272031749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8272031893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4136015906 + 4136015907.

It is an arithmetic number, because the mean of its divisors is an integer number (4136015907).

Almost surely, 2^8272031813 is an apocalyptic number.

It is an amenable number.

8272031813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8272031813 is an equidigital number, since it uses as much as digits as its factorization.

8272031813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 8272031813 is about 90950.7108988160. The cubic root of 8272031813 is about 2022.4171154502.

The spelling of 8272031813 in words is "eight billion, two hundred seventy-two million, thirty-one thousand, eight hundred thirteen".