247228041266385 has 128 divisors (see below), whose sum is σ = 429332220979200. Its totient is φ = 121097097031680.

The previous prime is 247228041266383. The next prime is 247228041266387. The reversal of 247228041266385 is 583662140822742.

It is an interprime number because it is at equal distance from previous prime (247228041266383) and next prime (247228041266387).

It is not a de Polignac number, because 247228041266385 - 2¹ = 247228041266383 is a prime.

It is a super-3 number, since 3×247228041266385³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (247228041266383) 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 in 127 ways as a sum of consecutive naturals, for example, 604393689 + ... + 604802601.

It is an arithmetic number, because the mean of its divisors is an integer number (3354157976400).

Almost surely, 2^{247228041266385} is an apocalyptic number.

It is an amenable number.

247228041266385 is a deficient number, since it is larger than the sum of its proper divisors (182104179712815).

247228041266385 is a wasteful number, since it uses less digits than its factorization.

247228041266385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409503.

The product of its (nonzero) digits is 61931520, while the sum is 60.

The spelling of 247228041266385 in words is "two hundred forty-seven trillion, two hundred twenty-eight billion, forty-one million, two hundred sixty-six thousand, three hundred eighty-five".