8510828981 has 2 divisors, whose sum is σ = 8510828982. Its totient is φ = 8510828980.

The previous prime is 8510828959. The next prime is 8510829031. The reversal of 8510828981 is 1898280158.

It is a happy number.

It is an a-pointer prime, because the next prime (8510829031) can be obtained adding 8510828981 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8075897956 + 434931025 = 89866^2 + 20855^2 .

It is a cyclic number.

It is not a de Polignac number, because 8510828981 - 2⁶ = 8510828917 is a prime.

It is a super-2 number, since 2×8510828981² (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 (8510828951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4255414490 + 4255414491.

It is an arithmetic number, because the mean of its divisors is an integer number (4255414491).

Almost surely, 2^8510828981 is an apocalyptic number.

It is an amenable number.

8510828981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8510828981 is an equidigital number, since it uses as much as digits as its factorization.

8510828981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 50.

The square root of 8510828981 is about 92254.1542750244. The cubic root of 8510828981 is about 2041.6938530865.

The spelling of 8510828981 in words is "eight billion, five hundred ten million, eight hundred twenty-eight thousand, nine hundred eighty-one".