2197775085 has 32 divisors (see below), whose sum is σ = 3841326720. Its totient is φ = 1064140800.

The previous prime is 2197775057. The next prime is 2197775117. The reversal of 2197775085 is 5805777912.

It is not a de Polignac number, because 2197775085 - 2⁵ = 2197775053 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 118225 + ... + 135545.

It is an arithmetic number, because the mean of its divisors is an integer number (120041460).

Almost surely, 2^2197775085 is an apocalyptic number.

It is an amenable number.

2197775085 is a deficient number, since it is larger than the sum of its proper divisors (1643551635).

2197775085 is a wasteful number, since it uses less digits than its factorization.

2197775085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18109.

The product of its (nonzero) digits is 1234800, while the sum is 51.

The square root of 2197775085 is about 46880.4339250396. The cubic root of 2197775085 is about 1300.1528587514.

The spelling of 2197775085 in words is "two billion, one hundred ninety-seven million, seven hundred seventy-five thousand, eighty-five".