488909909881 has 2 divisors, whose sum is σ = 488909909882. Its totient is φ = 488909909880.

The previous prime is 488909909857. The next prime is 488909909903. The reversal of 488909909881 is 188909909884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488299078656 + 610831225 = 698784^2 + 24715^2 .

It is a cyclic number.

It is not a de Polignac number, because 488909909881 - 2⁵ = 488909909849 is a prime.

It is a super-2 number, since 2×488909909881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (488909909381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244454954940 + 244454954941.

It is an arithmetic number, because the mean of its divisors is an integer number (244454954941).

Almost surely, 2^488909909881 is an apocalyptic number.

It is an amenable number.

488909909881 is a deficient number, since it is larger than the sum of its proper divisors (1).

488909909881 is an equidigital number, since it uses as much as digits as its factorization.

488909909881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107495424, while the sum is 73.

The spelling of 488909909881 in words is "four hundred eighty-eight billion, nine hundred nine million, nine hundred nine thousand, eight hundred eighty-one".