68290253312 has 30 divisors (see below), whose sum is σ = 136458942873. Its totient is φ = 34142170112.

The previous prime is 68290253303. The next prime is 68290253347. The reversal of 68290253312 is 21335209286.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 46579998976 + 21710254336 = 215824^2 + 147344^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=184784.

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 68290253312.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5907314 + ... + 5918862.

Almost surely, 2^68290253312 is an apocalyptic number.

It is an amenable number.

68290253312 is a deficient number, since it is larger than the sum of its proper divisors (68168689561).

68290253312 is an frugal number, since it uses more digits than its factorization.

68290253312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23116 (or 11551 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 68290253312 in words is "sixty-eight billion, two hundred ninety million, two hundred fifty-three thousand, three hundred twelve".