2128357824 has 56 divisors (see below), whose sum is σ = 5812950528. Its totient is φ = 686565120.

The previous prime is 2128357813. The next prime is 2128357843. The reversal of 2128357824 is 4287538212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172842 + ... + 184745.

It is an arithmetic number, because the mean of its divisors is an integer number (103802688).

Almost surely, 2^2128357824 is an apocalyptic number.

2128357824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2128357824 is an abundant number, since it is smaller than the sum of its proper divisors (3684592704).

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

2128357824 is a wasteful number, since it uses less digits than its factorization.

2128357824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357633 (or 357623 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 2128357824 is about 46134.1286251296. The cubic root of 2128357824 is about 1286.3176084579.

The spelling of 2128357824 in words is "two billion, one hundred twenty-eight million, three hundred fifty-seven thousand, eight hundred twenty-four".