68485512863 has 16 divisors (see below), whose sum is σ = 72981457920. Its totient is φ = 64079205696.

The previous prime is 68485512761. The next prime is 68485512871. The reversal of 68485512863 is 36821558486.

It is a cyclic number.

It is not a de Polignac number, because 68485512863 - 2¹⁸ = 68485250719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68485512799 and 68485512808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68485518863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8017931 + ... + 8026467.

It is an arithmetic number, because the mean of its divisors is an integer number (4561341120).

Almost surely, 2^68485512863 is an apocalyptic number.

68485512863 is a deficient number, since it is larger than the sum of its proper divisors (4495945057).

68485512863 is a wasteful number, since it uses less digits than its factorization.

68485512863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13726.

The product of its digits is 11059200, while the sum is 56.

The spelling of 68485512863 in words is "sixty-eight billion, four hundred eighty-five million, five hundred twelve thousand, eight hundred sixty-three".