8628929019481 has 2 divisors, whose sum is σ = 8628929019482. Its totient is φ = 8628929019480.

The previous prime is 8628929019449. The next prime is 8628929019493. The reversal of 8628929019481 is 1849109298268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6438576379225 + 2190352640256 = 2537435^2 + 1479984^2 .

It is a cyclic number.

It is not a de Polignac number, because 8628929019481 - 2⁵ = 8628929019449 is a prime.

It is a super-2 number, since 2×8628929019481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8628924019481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4314464509740 + 4314464509741.

It is an arithmetic number, because the mean of its divisors is an integer number (4314464509741).

Almost surely, 2^{8628929019481} is an apocalyptic number.

It is an amenable number.

8628929019481 is a deficient number, since it is larger than the sum of its proper divisors (1).

8628929019481 is an equidigital number, since it uses as much as digits as its factorization.

8628929019481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35831808, while the sum is 67.

The spelling of 8628929019481 in words is "eight trillion, six hundred twenty-eight billion, nine hundred twenty-nine million, nineteen thousand, four hundred eighty-one".