86240878280 has 64 divisors (see below), whose sum is σ = 205493811840. Its totient is φ = 32461212672.

The previous prime is 86240878231. The next prime is 86240878301. The reversal of 86240878280 is 8287804268.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5978837 + ... + 5993243.

It is an arithmetic number, because the mean of its divisors is an integer number (3210840810).

Almost surely, 2^86240878280 is an apocalyptic number.

It is an amenable number.

86240878280 is an abundant number, since it is smaller than the sum of its proper divisors (119252933560).

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

86240878280 is a wasteful number, since it uses less digits than its factorization.

86240878280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23238 (or 23234 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 53.

The spelling of 86240878280 in words is "eighty-six billion, two hundred forty million, eight hundred seventy-eight thousand, two hundred eighty".