268446814997 has 2 divisors, whose sum is σ = 268446814998. Its totient is φ = 268446814996.

The previous prime is 268446814991. The next prime is 268446815149. The reversal of 268446814997 is 799418644862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256232365636 + 12214449361 = 506194^2 + 110519^2 .

It is a cyclic number.

It is not a de Polignac number, because 268446814997 - 2¹⁸ = 268446552853 is a prime.

It is a super-2 number, since 2×268446814997² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268446814991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134223407498 + 134223407499.

It is an arithmetic number, because the mean of its divisors is an integer number (134223407499).

Almost surely, 2^268446814997 is an apocalyptic number.

It is an amenable number.

268446814997 is a deficient number, since it is larger than the sum of its proper divisors (1).

268446814997 is an equidigital number, since it uses as much as digits as its factorization.

268446814997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 68.

The spelling of 268446814997 in words is "two hundred sixty-eight billion, four hundred forty-six million, eight hundred fourteen thousand, nine hundred ninety-seven".