8532000781 has 2 divisors, whose sum is σ = 8532000782. Its totient is φ = 8532000780.

The previous prime is 8532000691. The next prime is 8532000809. The reversal of 8532000781 is 1870002358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8036226025 + 495774756 = 89645^2 + 22266^2 .

It is a cyclic number.

It is not a de Polignac number, because 8532000781 - 2³¹ = 6384517133 is a prime.

It is a super-2 number, since 2×8532000781² (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 (8532000481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4266000390 + 4266000391.

It is an arithmetic number, because the mean of its divisors is an integer number (4266000391).

Almost surely, 2^8532000781 is an apocalyptic number.

It is an amenable number.

8532000781 is a deficient number, since it is larger than the sum of its proper divisors (1).

8532000781 is an equidigital number, since it uses as much as digits as its factorization.

8532000781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 8532000781 is about 92368.8301376606. The cubic root of 8532000781 is about 2043.3854446557.

The spelling of 8532000781 in words is "eight billion, five hundred thirty-two million, seven hundred eighty-one", and thus it is an aban number.