2195078049 has 42 divisors (see below), whose sum is σ = 3383868978. Its totient is φ = 1422424800.

The previous prime is 2195078047. The next prime is 2195078089. The reversal of 2195078049 is 9408705912.

2195078049 is a `hidden beast` number, since 21 + 9 + 507 + 80 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1338462225 + 856615824 = 36585^2 + 29268^2 .

It is not a de Polignac number, because 2195078049 - 2¹ = 2195078047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2195077995 and 2195078013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195078047) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 8099784 + ... + 8100054.

It is an arithmetic number, because the mean of its divisors is an integer number (80568309).

Almost surely, 2^2195078049 is an apocalyptic number.

It is an amenable number.

2195078049 is a deficient number, since it is larger than the sum of its proper divisors (1188790929).

2195078049 is an frugal number, since it uses more digits than its factorization.

2195078049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2195078049 is about 46851.6600452962. The cubic root of 2195078049 is about 1299.6208063673.

It can be divided in two parts, 21950 and 78049, that added together give a palindrome (99999).

The spelling of 2195078049 in words is "two billion, one hundred ninety-five million, seventy-eight thousand, forty-nine".