72300000917 has 2 divisors, whose sum is σ = 72300000918. Its totient is φ = 72300000916.

The previous prime is 72300000847. The next prime is 72300000919. The reversal of 72300000917 is 71900000327.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71046770116 + 1253230801 = 266546^2 + 35401^2 .

It is a cyclic number.

It is not a de Polignac number, because 72300000917 - 2²² = 72295806613 is a prime.

Together with 72300000919, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72300000917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72300000919) 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, 36150000458 + 36150000459.

It is an arithmetic number, because the mean of its divisors is an integer number (36150000459).

Almost surely, 2^72300000917 is an apocalyptic number.

It is an amenable number.

72300000917 is a deficient number, since it is larger than the sum of its proper divisors (1).

72300000917 is an equidigital number, since it uses as much as digits as its factorization.

72300000917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 29.

The spelling of 72300000917 in words is "seventy-two billion, three hundred million, nine hundred seventeen", and thus it is an aban number.