86978366677 has 8 divisors (see below), whose sum is σ = 87476133600. Its totient is φ = 86480731824.

The previous prime is 86978366627. The next prime is 86978366711. The reversal of 86978366677 is 77666387968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86978366677 - 2⁷ = 86978366549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86978366627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1486899 + ... + 1544287.

It is an arithmetic number, because the mean of its divisors is an integer number (10934516700).

Almost surely, 2^86978366677 is an apocalyptic number.

It is an amenable number.

86978366677 is a deficient number, since it is larger than the sum of its proper divisors (497766923).

86978366677 is a wasteful number, since it uses less digits than its factorization.

86978366677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66035.

The product of its digits is 768144384, while the sum is 73.

The spelling of 86978366677 in words is "eighty-six billion, nine hundred seventy-eight million, three hundred sixty-six thousand, six hundred seventy-seven".