128654028146228 has 96 divisors (see below), whose sum is σ = 249276153144480. Its totient is φ = 57713725808640.

The previous prime is 128654028146153. The next prime is 128654028146309. The reversal of 128654028146228 is 822641820456821.

It can be written as a sum of positive squares in 16 ways, for example, as 16443819789604 + 112210208356624 = 4055098^2 + 10592932^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8010329318 + ... + 8010345378.

It is an arithmetic number, because the mean of its divisors is an integer number (2596626595255).

Almost surely, 2^{128654028146228} is an apocalyptic number.

It is an amenable number.

128654028146228 is a deficient number, since it is larger than the sum of its proper divisors (120622124998252).

128654028146228 is a wasteful number, since it uses less digits than its factorization.

128654028146228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20197 (or 20195 counting only the distinct ones).

The product of its (nonzero) digits is 23592960, while the sum is 59.

The spelling of 128654028146228 in words is "one hundred twenty-eight trillion, six hundred fifty-four billion, twenty-eight million, one hundred forty-six thousand, two hundred twenty-eight".