68737888557853 has 2 divisors, whose sum is σ = 68737888557854. Its totient is φ = 68737888557852.

The previous prime is 68737888557721. The next prime is 68737888557859. The reversal of 68737888557853 is 35875588873786.

68737888557853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35295516646009 + 33442371911844 = 5941003^2 + 5782938^2 .

It is a cyclic number.

It is not a de Polignac number, because 68737888557853 - 2³⁷ = 68600449604381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68737888557859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34368944278926 + 34368944278927.

It is an arithmetic number, because the mean of its divisors is an integer number (34368944278927).

Almost surely, 2^{68737888557853} is an apocalyptic number.

It is an amenable number.

68737888557853 is a deficient number, since it is larger than the sum of its proper divisors (1).

68737888557853 is an equidigital number, since it uses as much as digits as its factorization.

68737888557853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75866112000, while the sum is 88.

The spelling of 68737888557853 in words is "sixty-eight trillion, seven hundred thirty-seven billion, eight hundred eighty-eight million, five hundred fifty-seven thousand, eight hundred fifty-three".