28060507961 has 2 divisors, whose sum is σ = 28060507962. Its totient is φ = 28060507960.

The previous prime is 28060507957. The next prime is 28060508027. The reversal of 28060507961 is 16970506082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25394334736 + 2666173225 = 159356^2 + 51635^2 .

It is a cyclic number.

It is not a de Polignac number, because 28060507961 - 2² = 28060507957 is a prime.

It is not a weakly prime, because it can be changed into another prime (28060507931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030253980 + 14030253981.

It is an arithmetic number, because the mean of its divisors is an integer number (14030253981).

Almost surely, 2^28060507961 is an apocalyptic number.

It is an amenable number.

28060507961 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060507961 is an equidigital number, since it uses as much as digits as its factorization.

28060507961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 28060507961 in words is "twenty-eight billion, sixty million, five hundred seven thousand, nine hundred sixty-one".