867216612768 has 96 divisors (see below), whose sum is σ = 2483629283520. Its totient is φ = 262767912960.

The previous prime is 867216612767. The next prime is 867216612803.

867216612768 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (867216612767) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13185148 + ... + 13250756.

It is an arithmetic number, because the mean of its divisors is an integer number (25871138370).

Almost surely, 2^867216612768 is an apocalyptic number.

867216612768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

867216612768 is an abundant number, since it is smaller than the sum of its proper divisors (1616412670752).

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

867216612768 is a wasteful number, since it uses less digits than its factorization.

867216612768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78150 (or 78142 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The spelling of 867216612768 in words is "eight hundred sixty-seven billion, two hundred sixteen million, six hundred twelve thousand, seven hundred sixty-eight".