128915028672001 has 32 divisors (see below), whose sum is σ = 151573556534400. Its totient is φ = 108094085798400.

The previous prime is 128915028671963. The next prime is 128915028672011. The reversal of 128915028672001 is 100276820519821.

It is not a de Polignac number, because 128915028672001 - 2⁷ = 128915028671873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128915028672001.

It is not an unprimeable number, because it can be changed into a prime (128915028672011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1355768206 + ... + 1355863288.

It is an arithmetic number, because the mean of its divisors is an integer number (4736673641700).

Almost surely, 2^{128915028672001} is an apocalyptic number.

128915028672001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

128915028672001 is a deficient number, since it is larger than the sum of its proper divisors (22658527862399).

128915028672001 is a wasteful number, since it uses less digits than its factorization.

128915028672001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102577.

The product of its (nonzero) digits is 967680, while the sum is 52.

The spelling of 128915028672001 in words is "one hundred twenty-eight trillion, nine hundred fifteen billion, twenty-eight million, six hundred seventy-two thousand, one".