40068352273 has 4 divisors (see below), whose sum is σ = 40110397668. Its totient is φ = 40026306880.

The previous prime is 40068352267. The next prime is 40068352349. The reversal of 40068352273 is 37225386004.

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 6067942609 + 34000409664 = 77897^2 + 184392^2 .

It is a cyclic number.

It is not a de Polignac number, because 40068352273 - 2¹³ = 40068344081 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (40068352223) 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, 21021268 + ... + 21023173.

It is an arithmetic number, because the mean of its divisors is an integer number (10027599417).

Almost surely, 2^40068352273 is an apocalyptic number.

It is an amenable number.

40068352273 is a deficient number, since it is larger than the sum of its proper divisors (42045395).

40068352273 is an equidigital number, since it uses as much as digits as its factorization.

40068352273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42045394.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 40068352273 in words is "forty billion, sixty-eight million, three hundred fifty-two thousand, two hundred seventy-three".