86859369505 has 8 divisors (see below), whose sum is σ = 104274887400. Its totient is φ = 69458399616.

The previous prime is 86859369479. The next prime is 86859369523. The reversal of 86859369505 is 50596395868.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1737805969 + 85121563536 = 41687^2 + 291756^2 .

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 86859369505 - 2¹⁹ = 86858845217 is a prime.

It is a super-2 number, since 2×86859369505² (a number of 23 digits) contains 22 as substring.

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, 3623860 + ... + 3647749.

It is an arithmetic number, because the mean of its divisors is an integer number (13034360925).

Almost surely, 2^86859369505 is an apocalyptic number.

It is an amenable number.

86859369505 is a deficient number, since it is larger than the sum of its proper divisors (17415517895).

86859369505 is a wasteful number, since it uses less digits than its factorization.

86859369505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274003.

The product of its (nonzero) digits is 69984000, while the sum is 64.

The spelling of 86859369505 in words is "eighty-six billion, eight hundred fifty-nine million, three hundred sixty-nine thousand, five hundred five".