68910311282 has 6 divisors (see below), whose sum is σ = 103366023789. Its totient is φ = 34454970020.

The previous prime is 68910311273. The next prime is 68910311287. The reversal of 68910311282 is 28211301986.

It can be written as a sum of positive squares in 2 ways, for example, as 38742442561 + 30167868721 = 196831^2 + 173689^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185621.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68910311287) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 278432 + ... + 464052.

Almost surely, 2^68910311282 is an apocalyptic number.

68910311282 is a deficient number, since it is larger than the sum of its proper divisors (34455712507).

68910311282 is an frugal number, since it uses more digits than its factorization.

68910311282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371244 (or 185623 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 68910311282 in words is "sixty-eight billion, nine hundred ten million, three hundred eleven thousand, two hundred eighty-two".