67959821468882 has 18 divisors (see below), whose sum is σ = 118583096187447. Its totient is φ = 29125602797004.

The previous prime is 67959821468849. The next prime is 67959821468887. The reversal of 67959821468882 is 28886412895976.

It can be written as a sum of positive squares in only one way, i.e., 33979910734441 + 33979910734441 = 5829229^2 + 5829229^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5829229.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67959821468882.

It is not an unprimeable number, because it can be changed into a prime (67959821468887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81192833 + ... + 82025579.

Almost surely, 2^{67959821468882} is an apocalyptic number.

67959821468882 is a deficient number, since it is larger than the sum of its proper divisors (50623274718565).

67959821468882 is an frugal number, since it uses more digits than its factorization.

67959821468882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665510 (or 832756 counting only the distinct ones).

The product of its digits is 6688604160, while the sum is 83.

The spelling of 67959821468882 in words is "sixty-seven trillion, nine hundred fifty-nine billion, eight hundred twenty-one million, four hundred sixty-eight thousand, eight hundred eighty-two".