128011895157 has 8 divisors (see below), whose sum is σ = 170719722880. Its totient is φ = 85322665440.

The previous prime is 128011895153. The next prime is 128011895197. The reversal of 128011895157 is 751598110821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128011895157 - 2² = 128011895153 is a prime.

It is the 357788-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128011895153) by changing a digit.

It is a nontrivial repunit in base 357787.

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, 4633432 + ... + 4660977.

It is an arithmetic number, because the mean of its divisors is an integer number (21339965360).

Almost surely, 2^128011895157 is an apocalyptic number.

It is an amenable number.

128011895157 is a deficient number, since it is larger than the sum of its proper divisors (42707827723).

128011895157 is an equidigital number, since it uses as much as digits as its factorization.

128011895157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9299003.

The product of its (nonzero) digits is 201600, while the sum is 48.

The spelling of 128011895157 in words is "one hundred twenty-eight billion, eleven million, eight hundred ninety-five thousand, one hundred fifty-seven".