86744448650 has 12 divisors (see below), whose sum is σ = 161344674582. Its totient is φ = 34697779440.

The previous prime is 86744448629. The next prime is 86744448671. The reversal of 86744448650 is 5684444768.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86744448629) and next prime (86744448671).

It can be written as a sum of positive squares in 3 ways, for example, as 83803881121 + 2940567529 = 289489^2 + 54227^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 867444437 + ... + 867444536.

Almost surely, 2^86744448650 is an apocalyptic number.

86744448650 is a deficient number, since it is larger than the sum of its proper divisors (74600225932).

86744448650 is a wasteful number, since it uses less digits than its factorization.

86744448650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734888985 (or 1734888980 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 56.

The spelling of 86744448650 in words is "eighty-six billion, seven hundred forty-four million, four hundred forty-eight thousand, six hundred fifty".