864188881468 has 24 divisors (see below), whose sum is σ = 1649840693760. Its totient is φ = 392807043120.

The previous prime is 864188881463. The next prime is 864188881511.

It is a happy number.

864188881468 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 864188881397 and 864188881406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864188881463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3984555 + ... + 4195837.

It is an arithmetic number, because the mean of its divisors is an integer number (68743362240).

Almost surely, 2^864188881468 is an apocalyptic number.

It is an amenable number.

864188881468 is a deficient number, since it is larger than the sum of its proper divisors (785651812292).

864188881468 is a wasteful number, since it uses less digits than its factorization.

864188881468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304257 (or 304255 counting only the distinct ones).

The product of its digits is 150994944, while the sum is 70.

The spelling of 864188881468 in words is "eight hundred sixty-four billion, one hundred eighty-eight million, eight hundred eighty-one thousand, four hundred sixty-eight".