86518071650 has 24 divisors (see below), whose sum is σ = 161206484580. Its totient is φ = 34546396160.

The previous prime is 86518071631. The next prime is 86518071659. The reversal of 86518071650 is 5617081568.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 26238492289 + 60279579361 = 161983^2 + 245519^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 86518071595 and 86518071604.

It is not an unprimeable number, because it can be changed into a prime (86518071659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1492079 + ... + 1548978.

Almost surely, 2^86518071650 is an apocalyptic number.

86518071650 is a deficient number, since it is larger than the sum of its proper divisors (74688412930).

86518071650 is a wasteful number, since it uses less digits than its factorization.

86518071650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041638 (or 3041633 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 86518071650 in words is "eighty-six billion, five hundred eighteen million, seventy-one thousand, six hundred fifty".