68851091678882 has 16 divisors (see below), whose sum is σ = 103289821562304. Its totient is φ = 34421151450000.

The previous prime is 68851091678861. The next prime is 68851091678891. The reversal of 68851091678882 is 28887619015886.

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, 635684132 + ... + 635792432.

It is an arithmetic number, because the mean of its divisors is an integer number (6455613847644).

Almost surely, 2^{68851091678882} is an apocalyptic number.

68851091678882 is a deficient number, since it is larger than the sum of its proper divisors (34438729883422).

68851091678882 is a wasteful number, since it uses less digits than its factorization.

68851091678882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145945.

The product of its (nonzero) digits is 743178240, while the sum is 77.

The spelling of 68851091678882 in words is "sixty-eight trillion, eight hundred fifty-one billion, ninety-one million, six hundred seventy-eight thousand, eight hundred eighty-two".