72140445343 has 2 divisors, whose sum is σ = 72140445344. Its totient is φ = 72140445342.

The previous prime is 72140445341. The next prime is 72140445347. The reversal of 72140445343 is 34354404127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72140445343 - 2¹ = 72140445341 is a prime.

Together with 72140445341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72140445341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36070222671 + 36070222672.

It is an arithmetic number, because the mean of its divisors is an integer number (36070222672).

Almost surely, 2^72140445343 is an apocalyptic number.

72140445343 is a deficient number, since it is larger than the sum of its proper divisors (1).

72140445343 is an equidigital number, since it uses as much as digits as its factorization.

72140445343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 72140445343 in words is "seventy-two billion, one hundred forty million, four hundred forty-five thousand, three hundred forty-three".