2611623204 has 18 divisors (see below), whose sum is σ = 6601603190. Its totient is φ = 870541056.

The previous prime is 2611623199. The next prime is 2611623211. The reversal of 2611623204 is 4023261162.

2611623204 is a `hidden beast` number, since 2 + 6 + 11 + 623 + 20 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2299394304 + 312228900 = 47952^2 + 17670^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36272509 + ... + 36272580.

Almost surely, 2^2611623204 is an apocalyptic number.

It is an amenable number.

2611623204 is an abundant number, since it is smaller than the sum of its proper divisors (3989979986).

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

2611623204 is a wasteful number, since it uses less digits than its factorization.

2611623204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72545099 (or 72545094 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2611623204 is about 51104.0429320421. The cubic root of 2611623204 is about 1377.1148860783.

Adding to 2611623204 its reverse (4023261162), we get a palindrome (6634884366).

The spelling of 2611623204 in words is "two billion, six hundred eleven million, six hundred twenty-three thousand, two hundred four".