128518143537 has 8 divisors (see below), whose sum is σ = 195837171136. Its totient is φ = 73438939152.

The previous prime is 128518143527. The next prime is 128518143539. The reversal of 128518143537 is 735341815821.

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

It is not a de Polignac number, because 128518143537 - 2¹² = 128518139441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128518143539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3059955778 + ... + 3059955819.

It is an arithmetic number, because the mean of its divisors is an integer number (24479646392).

Almost surely, 2^128518143537 is an apocalyptic number.

It is an amenable number.

128518143537 is a deficient number, since it is larger than the sum of its proper divisors (67319027599).

128518143537 is an equidigital number, since it uses as much as digits as its factorization.

128518143537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119911607.

The product of its digits is 806400, while the sum is 48.

The spelling of 128518143537 in words is "one hundred twenty-eight billion, five hundred eighteen million, one hundred forty-three thousand, five hundred thirty-seven".