86544647388 has 72 divisors (see below), whose sum is σ = 234446922528. Its totient is φ = 26848153728.

The previous prime is 86544647383. The next prime is 86544647507. The reversal of 86544647388 is 88374644568.

86544647388 is a `hidden beast` number, since 8 + 6 + 544 + 6 + 4 + 7 + 3 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86544647383) 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 23 ways as a sum of consecutive naturals, for example, 1381831 + ... + 1443102.

Almost surely, 2^86544647388 is an apocalyptic number.

It is an amenable number.

86544647388 is an abundant number, since it is smaller than the sum of its proper divisors (147902275140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86544647388 is a wasteful number, since it uses less digits than its factorization.

86544647388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825003 (or 2824998 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 63.

The spelling of 86544647388 in words is "eighty-six billion, five hundred forty-four million, six hundred forty-seven thousand, three hundred eighty-eight".