68935455555 has 16 divisors (see below), whose sum is σ = 110342046624. Its totient is φ = 36750470400.

The previous prime is 68935455551. The next prime is 68935455559. The reversal of 68935455555 is 55555453986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68935455551) and next prime (68935455559).

It is not a de Polignac number, because 68935455555 - 2² = 68935455551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68935455551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906346 + ... + 979455.

It is an arithmetic number, because the mean of its divisors is an integer number (6896377914).

Almost surely, 2^68935455555 is an apocalyptic number.

68935455555 is a deficient number, since it is larger than the sum of its proper divisors (41406591069).

68935455555 is a wasteful number, since it uses less digits than its factorization.

68935455555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888246.

The product of its digits is 81000000, while the sum is 60.

The spelling of 68935455555 in words is "sixty-eight billion, nine hundred thirty-five million, four hundred fifty-five thousand, five hundred fifty-five".