86447245636 has 6 divisors (see below), whose sum is σ = 151282679870. Its totient is φ = 43223622816.

The previous prime is 86447245613. The next prime is 86447245639. The reversal of 86447245636 is 63654274468.

It can be written as a sum of positive squares in only one way, i.e., 70254683136 + 16192562500 = 265056^2 + 127250^2 .

It is not an unprimeable number, because it can be changed into a prime (86447245639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10805905701 + ... + 10805905708.

Almost surely, 2^86447245636 is an apocalyptic number.

It is an amenable number.

86447245636 is a deficient number, since it is larger than the sum of its proper divisors (64835434234).

86447245636 is a wasteful number, since it uses less digits than its factorization.

86447245636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611811413 (or 21611811411 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 55.

The spelling of 86447245636 in words is "eighty-six billion, four hundred forty-seven million, two hundred forty-five thousand, six hundred thirty-six".