86278570781856 has 192 divisors, whose sum is σ = 230174192941056. Its totient is φ = 28294388352000.

The previous prime is 86278570781831. The next prime is 86278570781903. The reversal of 86278570781856 is 65818707587268.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9959428981 + ... + 9959437643.

It is an arithmetic number, because the mean of its divisors is an integer number (1198823921568).

Almost surely, 2^{86278570781856} 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 86278570781856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115087096470528).

86278570781856 is an abundant number, since it is smaller than the sum of its proper divisors (143895622159200).

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

86278570781856 is a wasteful number, since it uses less digits than its factorization.

86278570781856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15355 (or 15347 counting only the distinct ones).

The product of its (nonzero) digits is 2528870400, while the sum is 78.

The spelling of 86278570781856 in words is "eighty-six trillion, two hundred seventy-eight billion, five hundred seventy million, seven hundred eighty-one thousand, eight hundred fifty-six".