128000250755207 has 4 divisors (see below), whose sum is σ = 128063398389576. Its totient is φ = 127937103120840.

The previous prime is 128000250755107. The next prime is 128000250755243. The reversal of 128000250755207 is 702557052000821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128000250755207 - 2¹⁰ = 128000250754183 is a prime.

It is a super-2 number, since 2×128000250755207² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128000250755107) 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 3 ways as a sum of consecutive naturals, for example, 31573814144 + ... + 31573818197.

It is an arithmetic number, because the mean of its divisors is an integer number (32015849597394).

Almost surely, 2^{128000250755207} is an apocalyptic number.

128000250755207 is a deficient number, since it is larger than the sum of its proper divisors (63147634369).

128000250755207 is an equidigital number, since it uses as much as digits as its factorization.

128000250755207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63147634368.

The product of its (nonzero) digits is 392000, while the sum is 44.

The spelling of 128000250755207 in words is "one hundred twenty-eight trillion, two hundred fifty million, seven hundred fifty-five thousand, two hundred seven".