86678560773721 has 16 divisors (see below), whose sum is σ = 102491954547840. Its totient is φ = 71723594476800.

The previous prime is 86678560773719. The next prime is 86678560773767. The reversal of 86678560773721 is 12737706587668.

It is not a de Polignac number, because 86678560773721 - 2¹ = 86678560773719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86678560773421) 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, 29507680 + ... + 32311921.

It is an arithmetic number, because the mean of its divisors is an integer number (6405747159240).

Almost surely, 2^{86678560773721} is an apocalyptic number.

It is an amenable number.

86678560773721 is a deficient number, since it is larger than the sum of its proper divisors (15813393774119).

86678560773721 is a wasteful number, since it uses less digits than its factorization.

86678560773721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61826544.

The product of its (nonzero) digits is 995742720, while the sum is 73.

The spelling of 86678560773721 in words is "eighty-six trillion, six hundred seventy-eight billion, five hundred sixty million, seven hundred seventy-three thousand, seven hundred twenty-one".