128040258352018 has 32 divisors (see below), whose sum is σ = 194185638846000. Its totient is φ = 63313184563200.

The previous prime is 128040258351997. The next prime is 128040258352049. The reversal of 128040258352018 is 810253852040821.

It can be written as a sum of positive squares in 8 ways, for example, as 31471056548649 + 96569201803369 = 5609907^2 + 9826963^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4723150648 + ... + 4723177756.

Almost surely, 2^{128040258352018} is an apocalyptic number.

128040258352018 is a deficient number, since it is larger than the sum of its proper divisors (66145380493982).

128040258352018 is a wasteful number, since it uses less digits than its factorization.

128040258352018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53310.

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 128040258352018 in words is "one hundred twenty-eight trillion, forty billion, two hundred fifty-eight million, three hundred fifty-two thousand, eighteen".