864781187468 has 12 divisors (see below), whose sum is σ = 1650945903432. Its totient is φ = 393082357920.

The previous prime is 864781187467. The next prime is 864781187471.

864781187468 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 864781187398 and 864781187407.

It is not an unprimeable number, because it can be changed into a prime (864781187461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9827058905 + ... + 9827058992.

It is an arithmetic number, because the mean of its divisors is an integer number (137578825286).

Almost surely, 2^864781187468 is an apocalyptic number.

It is an amenable number.

864781187468 is a deficient number, since it is larger than the sum of its proper divisors (786164715964).

864781187468 is a wasteful number, since it uses less digits than its factorization.

864781187468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19654117912 (or 19654117910 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 68.

The spelling of 864781187468 in words is "eight hundred sixty-four billion, seven hundred eighty-one million, one hundred eighty-seven thousand, four hundred sixty-eight".