68715851786 has 16 divisors (see below), whose sum is σ = 104848084800. Its totient is φ = 33766793568.

The previous prime is 68715851777. The next prime is 68715851791.

68715851786 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391430 + ... + 539118.

It is an arithmetic number, because the mean of its divisors is an integer number (6553005300).

Almost surely, 2^68715851786 is an apocalyptic number.

68715851786 is a deficient number, since it is larger than the sum of its proper divisors (36132233014).

68715851786 is a wasteful number, since it uses less digits than its factorization.

68715851786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151693.

The product of its digits is 22579200, while the sum is 62.

The spelling of 68715851786 in words is "sixty-eight billion, seven hundred fifteen million, eight hundred fifty-one thousand, seven hundred eighty-six".