2068844355497 has 2 divisors, whose sum is σ = 2068844355498. Its totient is φ = 2068844355496.

The previous prime is 2068844355493. The next prime is 2068844355553. The reversal of 2068844355497 is 7945534488602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1810825057561 + 258019297936 = 1345669^2 + 507956^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068844355497 - 2² = 2068844355493 is a prime.

It is not a weakly prime, because it can be changed into another prime (2068844355493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034422177748 + 1034422177749.

It is an arithmetic number, because the mean of its divisors is an integer number (1034422177749).

Almost surely, 2^{2068844355497} is an apocalyptic number.

It is an amenable number.

2068844355497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068844355497 is an equidigital number, since it uses as much as digits as its factorization.

2068844355497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 232243200, while the sum is 65.

The spelling of 2068844355497 in words is "two trillion, sixty-eight billion, eight hundred forty-four million, three hundred fifty-five thousand, four hundred ninety-seven".