2128629875 has 24 divisors (see below), whose sum is σ = 2777139456. Its totient is φ = 1628814000.

The previous prime is 2128629863. The next prime is 2128629901. The reversal of 2128629875 is 5789268212.

It is not a de Polignac number, because 2128629875 - 2²⁰ = 2127581299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50030 + ... + 82220.

It is an arithmetic number, because the mean of its divisors is an integer number (115714144).

Almost surely, 2^2128629875 is an apocalyptic number.

2128629875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2128629875 is a deficient number, since it is larger than the sum of its proper divisors (648509581).

2128629875 is an equidigital number, since it uses as much as digits as its factorization.

2128629875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32252 (or 32219 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 2128629875 is about 46137.0770097110. The cubic root of 2128629875 is about 1286.3724126953.

The spelling of 2128629875 in words is "two billion, one hundred twenty-eight million, six hundred twenty-nine thousand, eight hundred seventy-five".