72417799999 has 2 divisors, whose sum is σ = 72417800000. Its totient is φ = 72417799998.

The previous prime is 72417799997. The next prime is 72417800009. The reversal of 72417799999 is 99999771427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72417799999 - 2¹ = 72417799997 is a prime.

Together with 72417799997, 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 (72417799991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36208899999 + 36208900000.

It is an arithmetic number, because the mean of its divisors is an integer number (36208900000).

Almost surely, 2^72417799999 is an apocalyptic number.

72417799999 is a deficient number, since it is larger than the sum of its proper divisors (1).

72417799999 is an equidigital number, since it uses as much as digits as its factorization.

72417799999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162030456, while the sum is 73.

The spelling of 72417799999 in words is "seventy-two billion, four hundred seventeen million, seven hundred ninety-nine thousand, nine hundred ninety-nine".