2161579935 has 64 divisors (see below), whose sum is σ = 3801600000. Its totient is φ = 1044679680.

The previous prime is 2161579933. The next prime is 2161579967. The reversal of 2161579935 is 5399751612.

It is not a de Polignac number, because 2161579935 - 2¹ = 2161579933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161579933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 784941 + ... + 787689.

It is an arithmetic number, because the mean of its divisors is an integer number (59400000).

Almost surely, 2^2161579935 is an apocalyptic number.

2161579935 is a deficient number, since it is larger than the sum of its proper divisors (1640020065).

2161579935 is a wasteful number, since it uses less digits than its factorization.

2161579935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896.

The product of its digits is 510300, while the sum is 48.

The square root of 2161579935 is about 46492.7944417197. The cubic root of 2161579935 is about 1292.9759100551.

The spelling of 2161579935 in words is "two billion, one hundred sixty-one million, five hundred seventy-nine thousand, nine hundred thirty-five".