86774945709 has 8 divisors (see below), whose sum is σ = 115827494560. Its totient is φ = 57786180336.

The previous prime is 86774945701. The next prime is 86774945723. The reversal of 86774945709 is 90754947768.

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

It is not a de Polignac number, because 86774945709 - 2³ = 86774945701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86774945709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86774945701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15942694 + ... + 15948135.

It is an arithmetic number, because the mean of its divisors is an integer number (14478436820).

Almost surely, 2^86774945709 is an apocalyptic number.

It is an amenable number.

86774945709 is a deficient number, since it is larger than the sum of its proper divisors (29052548851).

86774945709 is a wasteful number, since it uses less digits than its factorization.

86774945709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31891739.

The product of its (nonzero) digits is 106686720, while the sum is 66.

The spelling of 86774945709 in words is "eighty-six billion, seven hundred seventy-four million, nine hundred forty-five thousand, seven hundred nine".