2795881945 has 4 divisors (see below), whose sum is σ = 3355058340. Its totient is φ = 2236705552.

The previous prime is 2795881943. The next prime is 2795881961. The reversal of 2795881945 is 5491885972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2012329881 + 783552064 = 44859^2 + 27992^2 .

It is a cyclic number.

It is not a de Polignac number, because 2795881945 - 2¹ = 2795881943 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2795881945.

It is not an unprimeable number, because it can be changed into a prime (2795881943) 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 3 ways as a sum of consecutive naturals, for example, 279588190 + ... + 279588199.

It is an arithmetic number, because the mean of its divisors is an integer number (838764585).

Almost surely, 2^2795881945 is an apocalyptic number.

It is an amenable number.

2795881945 is a deficient number, since it is larger than the sum of its proper divisors (559176395).

2795881945 is an equidigital number, since it uses as much as digits as its factorization.

2795881945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559176394.

The product of its digits is 7257600, while the sum is 58.

The square root of 2795881945 is about 52876.0999412778. The cubic root of 2795881945 is about 1408.7684272966.

The spelling of 2795881945 in words is "two billion, seven hundred ninety-five million, eight hundred eighty-one thousand, nine hundred forty-five".