975728204881 has 2 divisors, whose sum is σ = 975728204882. Its totient is φ = 975728204880.

The previous prime is 975728204851. The next prime is 975728204909. The reversal of 975728204881 is 188402827579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965127443281 + 10600761600 = 982409^2 + 102960^2 .

It is a cyclic number.

It is not a de Polignac number, because 975728204881 - 2⁷ = 975728204753 is a prime.

It is a super-2 number, since 2×975728204881² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (975728204851) 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, 487864102440 + 487864102441.

It is an arithmetic number, because the mean of its divisors is an integer number (487864102441).

Almost surely, 2^975728204881 is an apocalyptic number.

It is an amenable number.

975728204881 is a deficient number, since it is larger than the sum of its proper divisors (1).

975728204881 is an equidigital number, since it uses as much as digits as its factorization.

975728204881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 975728204881 in words is "nine hundred seventy-five billion, seven hundred twenty-eight million, two hundred four thousand, eight hundred eighty-one".