2128506017 has 16 divisors (see below), whose sum is σ = 2369291904. Its totient is φ = 1896000000.

The previous prime is 2128505963. The next prime is 2128506071. The reversal of 2128506017 is 7106058212.

It is an interprime number because it is at equal distance from previous prime (2128505963) and next prime (2128506071).

It is a cyclic number.

It is not a de Polignac number, because 2128506017 - 2¹⁴ = 2128489633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2128506617) 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 15 ways as a sum of consecutive naturals, for example, 97892 + ... + 117642.

It is an arithmetic number, because the mean of its divisors is an integer number (148080744).

Almost surely, 2^2128506017 is an apocalyptic number.

It is an amenable number.

2128506017 is a deficient number, since it is larger than the sum of its proper divisors (240785887).

2128506017 is a wasteful number, since it uses less digits than its factorization.

2128506017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19960.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2128506017 is about 46135.7347074911. The cubic root of 2128506017 is about 1286.3474622790.

The spelling of 2128506017 in words is "two billion, one hundred twenty-eight million, five hundred six thousand, seventeen".