2128772832 has 48 divisors (see below), whose sum is σ = 5592423312. Its totient is φ = 709032960.

The previous prime is 2128772831. The next prime is 2128772839. The reversal of 2128772832 is 2382778212.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2128772832² = 9063347540522600448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128772831) by changing a digit.

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, 124548 + ... + 140604.

It is an arithmetic number, because the mean of its divisors is an integer number (116508819).

Almost surely, 2^2128772832 is an apocalyptic number.

It is an amenable number.

2128772832 is an abundant number, since it is smaller than the sum of its proper divisors (3463650480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2128772832 is a wasteful number, since it uses less digits than its factorization.

2128772832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17451 (or 17443 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 2128772832 is about 46138.6262474296. The cubic root of 2128772832 is about 1286.4012092820.

The spelling of 2128772832 in words is "two billion, one hundred twenty-eight million, seven hundred seventy-two thousand, eight hundred thirty-two".