72300001493 has 2 divisors, whose sum is σ = 72300001494. Its totient is φ = 72300001492.

The previous prime is 72300001489. The next prime is 72300001531. The reversal of 72300001493 is 39410000327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66575868529 + 5724132964 = 258023^2 + 75658^2 .

It is an emirp because it is prime and its reverse (39410000327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72300001493 - 2² = 72300001489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72300001393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36150000746 + 36150000747.

It is an arithmetic number, because the mean of its divisors is an integer number (36150000747).

Almost surely, 2^72300001493 is an apocalyptic number.

It is an amenable number.

72300001493 is a deficient number, since it is larger than the sum of its proper divisors (1).

72300001493 is an equidigital number, since it uses as much as digits as its factorization.

72300001493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 72300001493 in words is "seventy-two billion, three hundred million, one thousand, four hundred ninety-three".