86397178897848 has 384 divisors, whose sum is σ = 280710514828800. Its totient is φ = 21575630748672.

The previous prime is 86397178897723. The next prime is 86397178897849. The reversal of 86397178897848 is 84879887179368.

It is a super-2 number, since 2×86397178897848² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86397178897849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1579185918 + ... + 1579240626.

It is an arithmetic number, because the mean of its divisors is an integer number (731016965700).

Almost surely, 2^{86397178897848} 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 86397178897848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140355257414400).

86397178897848 is an abundant number, since it is smaller than the sum of its proper divisors (194313335930952).

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

86397178897848 is a wasteful number, since it uses less digits than its factorization.

86397178897848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56779 (or 56756 counting only the distinct ones).

The product of its digits is 65548320768, while the sum is 93.

The spelling of 86397178897848 in words is "eighty-six trillion, three hundred ninety-seven billion, one hundred seventy-eight million, eight hundred ninety-seven thousand, eight hundred forty-eight".