128145846875 has 12 divisors (see below), whose sum is σ = 160172060832. Its totient is φ = 102516675000.

The previous prime is 128145846869. The next prime is 128145846911. The reversal of 128145846875 is 578648541821.

It is a happy number.

It is not a de Polignac number, because 128145846875 - 2¹⁸ = 128145584731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20500211 + ... + 20506460.

It is an arithmetic number, because the mean of its divisors is an integer number (13347671736).

Almost surely, 2^128145846875 is an apocalyptic number.

128145846875 is a deficient number, since it is larger than the sum of its proper divisors (32026213957).

128145846875 is an frugal number, since it uses more digits than its factorization.

128145846875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41006696 (or 41006676 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 59.

The spelling of 128145846875 in words is "one hundred twenty-eight billion, one hundred forty-five million, eight hundred forty-six thousand, eight hundred seventy-five".