86571034787778 has 8 divisors (see below), whose sum is σ = 173142069575568. Its totient is φ = 28857011595924.

The previous prime is 86571034787759. The next prime is 86571034787807. The reversal of 86571034787778 is 87778743017568.

86571034787778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

86571034787778 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214252898976 + ... + 7214252898987.

It is an arithmetic number, because the mean of its divisors is an integer number (21642758696946).

Almost surely, 2^{86571034787778} is an apocalyptic number.

86571034787778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86571034787778 is a wasteful number, since it uses less digits than its factorization.

86571034787778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428505797968.

The product of its (nonzero) digits is 3097866240, while the sum is 78.

The spelling of 86571034787778 in words is "eighty-six trillion, five hundred seventy-one billion, thirty-four million, seven hundred eighty-seven thousand, seven hundred seventy-eight".