86612381580440 has 128 divisors (see below), whose sum is σ = 206941536063360. Its totient is φ = 32512275554304.

The previous prime is 86612381580421. The next prime is 86612381580533. The reversal of 86612381580440 is 4408518321668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373733882 + ... + 373965558.

It is an arithmetic number, because the mean of its divisors is an integer number (1616730750495).

Almost surely, 2^{86612381580440} 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 86612381580440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103470768031680).

86612381580440 is an abundant number, since it is smaller than the sum of its proper divisors (120329154482920).

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

86612381580440 is a wasteful number, since it uses less digits than its factorization.

86612381580440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233301 (or 233297 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 86612381580440 in words is "eighty-six trillion, six hundred twelve billion, three hundred eighty-one million, five hundred eighty thousand, four hundred forty".