68745837048853 has 2 divisors, whose sum is σ = 68745837048854. Its totient is φ = 68745837048852.

The previous prime is 68745837048839. The next prime is 68745837048871. The reversal of 68745837048853 is 35884073854786.

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., 42606728828689 + 26139108220164 = 6527383^2 + 5112642^2 .

It is a cyclic number.

It is not a de Polignac number, because 68745837048853 - 2²⁵ = 68745803494421 is a prime.

It is a super-2 number, since 2×68745837048853² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68745837048853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68745837048353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34372918524426 + 34372918524427.

It is an arithmetic number, because the mean of its divisors is an integer number (34372918524427).

Almost surely, 2^{68745837048853} is an apocalyptic number.

It is an amenable number.

68745837048853 is a deficient number, since it is larger than the sum of its proper divisors (1).

68745837048853 is an equidigital number, since it uses as much as digits as its factorization.

68745837048853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4335206400, while the sum is 76.

The spelling of 68745837048853 in words is "sixty-eight trillion, seven hundred forty-five billion, eight hundred thirty-seven million, forty-eight thousand, eight hundred fifty-three".