68355044055385 has 8 divisors (see below), whose sum is σ = 82047452851080. Its totient is φ = 54669768587904.

The previous prime is 68355044055367. The next prime is 68355044055409. The reversal of 68355044055385 is 58355044055386.

It can be written as a sum of positive squares in 4 ways, for example, as 1164448177216 + 67190595878169 = 1079096^2 + 8196987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68355044055385 - 2³⁷ = 68217605101913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1783310970 + ... + 1783349299.

It is an arithmetic number, because the mean of its divisors is an integer number (10255931606385).

Almost surely, 2^{68355044055385} is an apocalyptic number.

It is an amenable number.

68355044055385 is a deficient number, since it is larger than the sum of its proper divisors (13692408795695).

68355044055385 is a wasteful number, since it uses less digits than its factorization.

68355044055385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566664107.

The product of its (nonzero) digits is 172800000, while the sum is 61.

Subtracting from 68355044055385 its reverse (58355044055386), we obtain a palindrome (9999999999999).

The spelling of 68355044055385 in words is "sixty-eight trillion, three hundred fifty-five billion, forty-four million, fifty-five thousand, three hundred eighty-five".