128214028402 has 16 divisors (see below), whose sum is σ = 211245082560. Its totient is φ = 58092396912.

The previous prime is 128214028381. The next prime is 128214028403. The reversal of 128214028402 is 204820412821.

It is not an unprimeable number, because it can be changed into a prime (128214028403) 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 7 ways as a sum of consecutive naturals, for example, 73348113 + ... + 73349860.

It is an arithmetic number, because the mean of its divisors is an integer number (13202817660).

Almost surely, 2^128214028402 is an apocalyptic number.

128214028402 is a deficient number, since it is larger than the sum of its proper divisors (83031054158).

128214028402 is a wasteful number, since it uses less digits than its factorization.

128214028402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146698017.

The product of its (nonzero) digits is 16384, while the sum is 34.

The spelling of 128214028402 in words is "one hundred twenty-eight billion, two hundred fourteen million, twenty-eight thousand, four hundred two".