861168860814 has 16 divisors (see below), whose sum is σ = 1722389419728. Its totient is φ = 287047670592.

The previous prime is 861168860813. The next prime is 861168860831. The reversal of 861168860814 is 418068861168.

It is a happy number.

861168860814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×861168860814² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861168860813) 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, 1935837 + ... + 2338760.

It is an arithmetic number, because the mean of its divisors is an integer number (107649338733).

Almost surely, 2^861168860814 is an apocalyptic number.

861168860814 is an abundant number, since it is smaller than the sum of its proper divisors (861220558914).

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

861168860814 is a wasteful number, since it uses less digits than its factorization.

861168860814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308179.

The product of its (nonzero) digits is 3538944, while the sum is 57.

The spelling of 861168860814 in words is "eight hundred sixty-one billion, one hundred sixty-eight million, eight hundred sixty thousand, eight hundred fourteen".