68661835 has 16 divisors (see below), whose sum is σ = 90047232. Its totient is φ = 49845600.

The previous prime is 68661811. The next prime is 68661847. The reversal of 68661835 is 53816686.

It is not a de Polignac number, because 68661835 - 2²⁵ = 35107403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68661791 and 68661800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52540 + ... + 53830.

It is an arithmetic number, because the mean of its divisors is an integer number (5627952).

Almost surely, 2^68661835 is an apocalyptic number.

68661835 is a deficient number, since it is larger than the sum of its proper divisors (21385397).

68661835 is a wasteful number, since it uses less digits than its factorization.

68661835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274.

The product of its digits is 207360, while the sum is 43.

The square root of 68661835 is about 8286.2437207700. The cubic root of 68661835 is about 409.4854441243.

It can be divided in two parts, 68661 and 835, that added together give a palindrome (69496).

The spelling of 68661835 in words is "sixty-eight million, six hundred sixty-one thousand, eight hundred thirty-five".