128478875207 has 2 divisors, whose sum is σ = 128478875208. Its totient is φ = 128478875206.

The previous prime is 128478875201. The next prime is 128478875227. The reversal of 128478875207 is 702578874821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128478875207 - 2⁴ = 128478875191 is a prime.

It is a super-3 number, since 3×128478875207³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128478875201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64239437603 + 64239437604.

It is an arithmetic number, because the mean of its divisors is an integer number (64239437604).

Almost surely, 2^128478875207 is an apocalyptic number.

128478875207 is a deficient number, since it is larger than the sum of its proper divisors (1).

128478875207 is an equidigital number, since it uses as much as digits as its factorization.

128478875207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14049280, while the sum is 59.

The spelling of 128478875207 in words is "one hundred twenty-eight billion, four hundred seventy-eight million, eight hundred seventy-five thousand, two hundred seven".