268785210101 has 2 divisors, whose sum is σ = 268785210102. Its totient is φ = 268785210100.

The previous prime is 268785210047. The next prime is 268785210137. The reversal of 268785210101 is 101012587862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252781695076 + 16003515025 = 502774^2 + 126505^2 .

It is a cyclic number.

It is not a de Polignac number, because 268785210101 - 2⁶ = 268785210037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268785213101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134392605050 + 134392605051.

It is an arithmetic number, because the mean of its divisors is an integer number (134392605051).

Almost surely, 2^268785210101 is an apocalyptic number.

It is an amenable number.

268785210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

268785210101 is an equidigital number, since it uses as much as digits as its factorization.

268785210101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 41.

Adding to 268785210101 its reverse (101012587862), we get a palindrome (369797797963).

The spelling of 268785210101 in words is "two hundred sixty-eight billion, seven hundred eighty-five million, two hundred ten thousand, one hundred one".