172407745247 has 2 divisors, whose sum is σ = 172407745248. Its totient is φ = 172407745246.

The previous prime is 172407745217. The next prime is 172407745259. The reversal of 172407745247 is 742547704271.

172407745247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (742547704271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172407745247 - 2¹⁶ = 172407679711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172407745195 and 172407745204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172407745217) 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, 86203872623 + 86203872624.

It is an arithmetic number, because the mean of its divisors is an integer number (86203872624).

Almost surely, 2^172407745247 is an apocalyptic number.

172407745247 is a deficient number, since it is larger than the sum of its proper divisors (1).

172407745247 is an equidigital number, since it uses as much as digits as its factorization.

172407745247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3073280, while the sum is 50.

The spelling of 172407745247 in words is "one hundred seventy-two billion, four hundred seven million, seven hundred forty-five thousand, two hundred forty-seven".