128775150375 has 32 divisors (see below), whose sum is σ = 214305144768. Its totient is φ = 68672614400.

The previous prime is 128775150373. The next prime is 128775150421. The reversal of 128775150375 is 573051577821.

It is a happy number.

It is not a de Polignac number, because 128775150375 - 2¹ = 128775150373 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128775150373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6151927 + ... + 6172823.

It is an arithmetic number, because the mean of its divisors is an integer number (6697035774).

Almost surely, 2^128775150375 is an apocalyptic number.

128775150375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128775150375 is a deficient number, since it is larger than the sum of its proper divisors (85529994393).

128775150375 is a wasteful number, since it uses less digits than its factorization.

128775150375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37348 (or 37338 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 51.

The spelling of 128775150375 in words is "one hundred twenty-eight billion, seven hundred seventy-five million, one hundred fifty thousand, three hundred seventy-five".