68487973318475 has 12 divisors (see below), whose sum is σ = 85198157943600. Its totient is φ = 54614203797600.

The previous prime is 68487973318459. The next prime is 68487973318477. The reversal of 68487973318475 is 57481337978486.

68487973318475 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 68487973318475 - 2⁴ = 68487973318459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68487973318475.

It is not an unprimeable number, because it can be changed into a prime (68487973318477) 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 11 ways as a sum of consecutive naturals, for example, 4404363500 + ... + 4404379049.

It is an arithmetic number, because the mean of its divisors is an integer number (7099846495300).

Almost surely, 2^{68487973318475} is an apocalyptic number.

68487973318475 is a deficient number, since it is larger than the sum of its proper divisors (16710184625125).

68487973318475 is a wasteful number, since it uses less digits than its factorization.

68487973318475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8808742870 (or 8808742865 counting only the distinct ones).

The product of its digits is 6827950080, while the sum is 80.

The spelling of 68487973318475 in words is "sixty-eight trillion, four hundred eighty-seven billion, nine hundred seventy-three million, three hundred eighteen thousand, four hundred seventy-five".