2109775604 has 6 divisors (see below), whose sum is σ = 3692107314. Its totient is φ = 1054887800.

The previous prime is 2109775597. The next prime is 2109775627. The reversal of 2109775604 is 4065779012.

It can be written as a sum of positive squares in only one way, i.e., 1958239504 + 151536100 = 44252^2 + 12310^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263721947 + ... + 263721954.

It is an arithmetic number, because the mean of its divisors is an integer number (615351219).

Almost surely, 2^2109775604 is an apocalyptic number.

It is an amenable number.

2109775604 is a deficient number, since it is larger than the sum of its proper divisors (1582331710).

2109775604 is a wasteful number, since it uses less digits than its factorization.

2109775604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527443905 (or 527443903 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 2109775604 is about 45932.2936940885. The cubic root of 2109775604 is about 1282.5631428037.

The spelling of 2109775604 in words is "two billion, one hundred nine million, seven hundred seventy-five thousand, six hundred four".