2792120805 has 18 divisors (see below), whose sum is σ = 4840290546. Its totient is φ = 1488942048.

The previous prime is 2792120801. The next prime is 2792120819. The reversal of 2792120805 is 5080212972.

2792120805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10929636 + 2781191169 = 3306^2 + 52737^2 .

It is not a de Polignac number, because 2792120805 - 2² = 2792120801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2792120805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2792120801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 350527 + ... + 358403.

Almost surely, 2^2792120805 is an apocalyptic number.

It is an amenable number.

2792120805 is a deficient number, since it is larger than the sum of its proper divisors (2048169741).

2792120805 is an frugal number, since it uses more digits than its factorization.

2792120805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765 (or 7885 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 2792120805 is about 52840.5223762975. The cubic root of 2792120805 is about 1408.1364319643.

The spelling of 2792120805 in words is "two billion, seven hundred ninety-two million, one hundred twenty thousand, eight hundred five".