10186779913 has 2 divisors, whose sum is σ = 10186779914. Its totient is φ = 10186779912.

The previous prime is 10186779881. The next prime is 10186779923. The reversal of 10186779913 is 31997768101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9606548169 + 580231744 = 98013^2 + 24088^2 .

It is a cyclic number.

It is not a de Polignac number, because 10186779913 - 2⁵ = 10186779881 is a prime.

It is not a weakly prime, because it can be changed into another prime (10186779923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5093389956 + 5093389957.

It is an arithmetic number, because the mean of its divisors is an integer number (5093389957).

Almost surely, 2^10186779913 is an apocalyptic number.

It is an amenable number.

10186779913 is a deficient number, since it is larger than the sum of its proper divisors (1).

10186779913 is an equidigital number, since it uses as much as digits as its factorization.

10186779913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 10186779913 in words is "ten billion, one hundred eighty-six million, seven hundred seventy-nine thousand, nine hundred thirteen".