128063360549 has 8 divisors (see below), whose sum is σ = 134808864000. Its totient is φ = 121318389792.

The previous prime is 128063360543. The next prime is 128063360561. The reversal of 128063360549 is 945063360821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128063360549 - 2¹² = 128063356453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128063360543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419057 + ... + 657065.

It is an arithmetic number, because the mean of its divisors is an integer number (16851108000).

Almost surely, 2^128063360549 is an apocalyptic number.

128063360549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

128063360549 is a deficient number, since it is larger than the sum of its proper divisors (6745503451).

128063360549 is a wasteful number, since it uses less digits than its factorization.

128063360549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266347.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 128063360549 in words is "one hundred twenty-eight billion, sixty-three million, three hundred sixty thousand, five hundred forty-nine".