2128948970 has 16 divisors (see below), whose sum is σ = 3843691488. Its totient is φ = 849005520.

The previous prime is 2128948951. The next prime is 2128948973. The reversal of 2128948970 is 798498212.

It is not an unprimeable number, because it can be changed into a prime (2128948973) 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, 318284 + ... + 324903.

It is an arithmetic number, because the mean of its divisors is an integer number (240230718).

Almost surely, 2^2128948970 is an apocalyptic number.

2128948970 is a deficient number, since it is larger than the sum of its proper divisors (1714742518).

2128948970 is a wasteful number, since it uses less digits than its factorization.

2128948970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643525.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 2128948970 is about 46140.5349990656. The cubic root of 2128948970 is about 1286.4366879208.

The spelling of 2128948970 in words is "two billion, one hundred twenty-eight million, nine hundred forty-eight thousand, nine hundred seventy".