2097749855 has 8 divisors (see below), whose sum is σ = 2521666032. Its totient is φ = 1675289088.

The previous prime is 2097749821. The next prime is 2097749869. The reversal of 2097749855 is 5589477902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2097749855 - 2¹² = 2097745759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2097749855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360677 + ... + 366446.

It is an arithmetic number, because the mean of its divisors is an integer number (315208254).

Almost surely, 2^2097749855 is an apocalyptic number.

2097749855 is a deficient number, since it is larger than the sum of its proper divisors (423916177).

2097749855 is an equidigital number, since it uses as much as digits as its factorization.

2097749855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727705.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The square root of 2097749855 is about 45801.1992746915. The cubic root of 2097749855 is about 1280.1216223545.

The spelling of 2097749855 in words is "two billion, ninety-seven million, seven hundred forty-nine thousand, eight hundred fifty-five".