128907062258 has 54 divisors (see below), whose sum is σ = 213632981037. Its totient is φ = 58310469360.

The previous prime is 128907062257. The next prime is 128907062369. The reversal of 128907062258 is 852260709821.

It can be written as a sum of positive squares in 2 ways, for example, as 110219352049 + 18687710209 = 331993^2 + 136703^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=253877.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128907062257) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 389447153 + ... + 389447483.

Almost surely, 2^128907062258 is an apocalyptic number.

128907062258 is a deficient number, since it is larger than the sum of its proper divisors (84725918779).

128907062258 is an frugal number, since it uses more digits than its factorization.

128907062258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

Multiplying 128907062258 by its sum of digits (50), we get a square (6445353112900 = 2538770²).

The spelling of 128907062258 in words is "one hundred twenty-eight billion, nine hundred seven million, sixty-two thousand, two hundred fifty-eight".