128650242399 has 32 divisors (see below), whose sum is σ = 202571520000. Its totient is φ = 72583816032.

The previous prime is 128650242373. The next prime is 128650242401. The reversal of 128650242399 is 993242056821.

It is not a de Polignac number, because 128650242399 - 2⁷ = 128650242271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128650242199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710004 + ... + 872585.

It is an arithmetic number, because the mean of its divisors is an integer number (6330360000).

Almost surely, 2^128650242399 is an apocalyptic number.

128650242399 is a deficient number, since it is larger than the sum of its proper divisors (73921277601).

128650242399 is an equidigital number, since it uses as much as digits as its factorization.

128650242399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582692 (or 1582678 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 128650242399 in words is "one hundred twenty-eight billion, six hundred fifty million, two hundred forty-two thousand, three hundred ninety-nine".