72126306799 has 2 divisors, whose sum is σ = 72126306800. Its totient is φ = 72126306798.

The previous prime is 72126306773. The next prime is 72126306821. The reversal of 72126306799 is 99760362127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72126306799 - 2¹¹ = 72126304751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72126306599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36063153399 + 36063153400.

It is an arithmetic number, because the mean of its divisors is an integer number (36063153400).

Almost surely, 2^72126306799 is an apocalyptic number.

72126306799 is a deficient number, since it is larger than the sum of its proper divisors (1).

72126306799 is an equidigital number, since it uses as much as digits as its factorization.

72126306799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 72126306799 in words is "seventy-two billion, one hundred twenty-six million, three hundred six thousand, seven hundred ninety-nine".