86649689088 has 220 divisors, whose sum is σ = 272376440160. Its totient is φ = 27362562048.

The previous prime is 86649689083. The next prime is 86649689089. The reversal of 86649689088 is 88098694668.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86649689081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1548445 + ... + 1603427.

It is an arithmetic number, because the mean of its divisors is an integer number (1238074728).

Almost surely, 2^86649689088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86649689088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136188220080).

86649689088 is an abundant number, since it is smaller than the sum of its proper divisors (185726751072).

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

86649689088 is a wasteful number, since it uses less digits than its factorization.

86649689088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55034 (or 55007 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 72.

The spelling of 86649689088 in words is "eighty-six billion, six hundred forty-nine million, six hundred eighty-nine thousand, eighty-eight".