68835806218503 has 32 divisors (see below), whose sum is σ = 103141413259200. Its totient is φ = 45367605093888.

The previous prime is 68835806218451. The next prime is 68835806218541. The reversal of 68835806218503 is 30581260853886.

68835806218503 is a `hidden beast` number, since 6 + 8 + 8 + 3 + 58 + 0 + 62 + 18 + 503 = 666.

68835806218503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 68835806218503 - 2⁸ = 68835806218247 is a prime.

It is a super-2 number, since 2×68835806218503² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68835806218103) 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 in 31 ways as a sum of consecutive naturals, for example, 12635625 + ... + 17243277.

It is an arithmetic number, because the mean of its divisors is an integer number (3223169164350).

Almost surely, 2^{68835806218503} is an apocalyptic number.

68835806218503 is a deficient number, since it is larger than the sum of its proper divisors (34305607040697).

68835806218503 is a wasteful number, since it uses less digits than its factorization.

68835806218503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613968 (or 4613962 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 63.

The spelling of 68835806218503 in words is "sixty-eight trillion, eight hundred thirty-five billion, eight hundred six million, two hundred eighteen thousand, five hundred three".