8626481761 has 2 divisors, whose sum is σ = 8626481762. Its totient is φ = 8626481760.

The previous prime is 8626481749. The next prime is 8626481797. The reversal of 8626481761 is 1671846268.

8626481761 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8398622736 + 227859025 = 91644^2 + 15095^2 .

It is a cyclic number.

It is not a de Polignac number, because 8626481761 - 2²¹ = 8624384609 is a prime.

It is a super-2 number, since 2×8626481761² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8626481701) 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, 4313240880 + 4313240881.

It is an arithmetic number, because the mean of its divisors is an integer number (4313240881).

Almost surely, 2^8626481761 is an apocalyptic number.

It is an amenable number.

8626481761 is a deficient number, since it is larger than the sum of its proper divisors (1).

8626481761 is an equidigital number, since it uses as much as digits as its factorization.

8626481761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 8626481761 is about 92878.8552954869. The cubic root of 8626481761 is about 2050.9003985213.

The spelling of 8626481761 in words is "eight billion, six hundred twenty-six million, four hundred eighty-one thousand, seven hundred sixty-one".