68747480293 has 4 divisors (see below), whose sum is σ = 72791449740. Its totient is φ = 64703510848.

The previous prime is 68747480281. The next prime is 68747480317. The reversal of 68747480293 is 39208474786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28594133604 + 40153346689 = 169098^2 + 200383^2 .

It is a cyclic number.

It is not a de Polignac number, because 68747480293 - 2⁵ = 68747480261 is a prime.

It is a super-3 number, since 3×68747480293³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68747480203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021984698 + ... + 2021984731.

It is an arithmetic number, because the mean of its divisors is an integer number (18197862435).

Almost surely, 2^68747480293 is an apocalyptic number.

It is an amenable number.

68747480293 is a deficient number, since it is larger than the sum of its proper divisors (4043969447).

68747480293 is a wasteful number, since it uses less digits than its factorization.

68747480293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043969446.

The product of its (nonzero) digits is 16257024, while the sum is 58.

It can be divided in two parts, 687474 and 80293, that added together give a palindrome (767767).

The spelling of 68747480293 in words is "sixty-eight billion, seven hundred forty-seven million, four hundred eighty thousand, two hundred ninety-three".