2111209504 has 12 divisors (see below), whose sum is σ = 4156443774. Its totient is φ = 1055604736.

The previous prime is 2111209489. The next prime is 2111209517. The reversal of 2111209504 is 4059021112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2110483600 + 725904 = 45940^2 + 852^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32987617 + ... + 32987680.

Almost surely, 2^2111209504 is an apocalyptic number.

It is an amenable number.

2111209504 is a deficient number, since it is larger than the sum of its proper divisors (2045234270).

2111209504 is an equidigital number, since it uses as much as digits as its factorization.

2111209504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65975307 (or 65975299 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2111209504 is about 45947.8998867195. The cubic root of 2111209504 is about 1282.8536398604.

The spelling of 2111209504 in words is "two billion, one hundred eleven million, two hundred nine thousand, five hundred four".