128350888029 has 48 divisors (see below), whose sum is σ = 241601697792. Its totient is φ = 63719115264.

The previous prime is 128350888027. The next prime is 128350888033. The reversal of 128350888029 is 920888053821.

128350888029 is a `hidden beast` number, since 128 + 3 + 508 + 8 + 8 + 0 + 2 + 9 = 666.

It is not a de Polignac number, because 128350888029 - 2¹ = 128350888027 is a prime.

It is a super-3 number, since 3×128350888029³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128350888027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4595389 + ... + 4623234.

It is an arithmetic number, because the mean of its divisors is an integer number (5033368704).

Almost surely, 2^128350888029 is an apocalyptic number.

It is an amenable number.

128350888029 is a deficient number, since it is larger than the sum of its proper divisors (113250809763).

128350888029 is a wasteful number, since it uses less digits than its factorization.

128350888029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9218666 (or 9218663 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 128350888029 in words is "one hundred twenty-eight billion, three hundred fifty million, eight hundred eighty-eight thousand, twenty-nine".