868148886740 has 12 divisors (see below), whose sum is σ = 1823112662196. Its totient is φ = 347259554688.

The previous prime is 868148886727. The next prime is 868148886791. The reversal of 868148886740 is 47688841868.

It can be written as a sum of positive squares in 2 ways, for example, as 603545641924 + 264603244816 = 776882^2 + 514396^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 21703722149 + ... + 21703722188.

It is an arithmetic number, because the mean of its divisors is an integer number (151926055183).

Almost surely, 2^868148886740 is an apocalyptic number.

It is an amenable number.

868148886740 is an abundant number, since it is smaller than the sum of its proper divisors (954963775456).

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

868148886740 is a wasteful number, since it uses less digits than its factorization.

868148886740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43407444346 (or 43407444344 counting only the distinct ones).

The product of its (nonzero) digits is 132120576, while the sum is 68.

The spelling of 868148886740 in words is "eight hundred sixty-eight billion, one hundred forty-eight million, eight hundred eighty-six thousand, seven hundred forty".