68912820886 has 32 divisors (see below), whose sum is σ = 127258000128. Its totient is φ = 27254858400.

The previous prime is 68912820829. The next prime is 68912820923. The reversal of 68912820886 is 68802821986.

It is a self number, because there is not a number n which added to its sum of digits gives 68912820886.

It is a congruent 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, 651721 + ... + 750043.

It is an arithmetic number, because the mean of its divisors is an integer number (3976812504).

Almost surely, 2^68912820886 is an apocalyptic number.

68912820886 is a deficient number, since it is larger than the sum of its proper divisors (58345179242).

68912820886 is a wasteful number, since it uses less digits than its factorization.

68912820886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102196.

The product of its (nonzero) digits is 5308416, while the sum is 58.

The spelling of 68912820886 in words is "sixty-eight billion, nine hundred twelve million, eight hundred twenty thousand, eight hundred eighty-six".