68535476385 has 16 divisors (see below), whose sum is σ = 112331318400. Its totient is φ = 35660735360.

The previous prime is 68535476369. The next prime is 68535476407. The reversal of 68535476385 is 58367453586.

It is not a de Polignac number, because 68535476385 - 2⁴ = 68535476369 is a prime.

It is a super-2 number, since 2×68535476385² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55719285 + ... + 55720514.

It is an arithmetic number, because the mean of its divisors is an integer number (7020707400).

Almost surely, 2^68535476385 is an apocalyptic number.

It is an amenable number.

68535476385 is a deficient number, since it is larger than the sum of its proper divisors (43795842015).

68535476385 is a wasteful number, since it uses less digits than its factorization.

68535476385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111439848.

The product of its digits is 72576000, while the sum is 60.

The spelling of 68535476385 in words is "sixty-eight billion, five hundred thirty-five million, four hundred seventy-six thousand, three hundred eighty-five".