128381287836035 has 16 divisors (see below), whose sum is σ = 165908437936416. Its totient is φ = 94804464972288.

The previous prime is 128381287835981. The next prime is 128381287836037. The reversal of 128381287836035 is 530638782183821.

It is a cyclic number.

It is not a de Polignac number, because 128381287836035 - 2²⁴ = 128381271058819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128381287836037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40241432 + ... + 43314378.

It is an arithmetic number, because the mean of its divisors is an integer number (10369277371026).

Almost surely, 2^{128381287836035} is an apocalyptic number.

128381287836035 is a deficient number, since it is larger than the sum of its proper divisors (37527150100381).

128381287836035 is a wasteful number, since it uses less digits than its factorization.

128381287836035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715702.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 128381287836035 in words is "one hundred twenty-eight trillion, three hundred eighty-one billion, two hundred eighty-seven million, eight hundred thirty-six thousand, thirty-five".