2750211989 has 8 divisors (see below), whose sum is σ = 3148282368. Its totient is φ = 2353437360.

The previous prime is 2750211983. The next prime is 2750212033. The reversal of 2750211989 is 9891120572.

It is a happy number.

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 2750211989 - 2⁴ = 2750211973 is a prime.

It is a super-2 number, since 2×2750211989² = 15127331968878672242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750211983) by changing a digit.

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, 319382 + ... + 327879.

It is an arithmetic number, because the mean of its divisors is an integer number (393535296).

Almost surely, 2^2750211989 is an apocalyptic number.

It is an amenable number.

2750211989 is a deficient number, since it is larger than the sum of its proper divisors (398070379).

2750211989 is an equidigital number, since it uses as much as digits as its factorization.

2750211989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647875.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 2750211989 is about 52442.4636053647. The cubic root of 2750211989 is about 1401.0556644945.

The spelling of 2750211989 in words is "two billion, seven hundred fifty million, two hundred eleven thousand, nine hundred eighty-nine".