2189764750 has 16 divisors (see below), whose sum is σ = 4099240080. Its totient is φ = 875905800.

The previous prime is 2189764699. The next prime is 2189764751. The reversal of 2189764750 is 574679812.

It is a junction number, because it is equal to n+sod(n) for n = 2189764694 and 2189764703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189764751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4379280 + ... + 4379779.

It is an arithmetic number, because the mean of its divisors is an integer number (256202505).

Almost surely, 2^2189764750 is an apocalyptic number.

2189764750 is a deficient number, since it is larger than the sum of its proper divisors (1909475330).

2189764750 is an equidigital number, since it uses as much as digits as its factorization.

2189764750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759076 (or 8759066 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 2189764750 is about 46794.9222672717. The cubic root of 2189764750 is about 1298.5713595588.

The spelling of 2189764750 in words is "two billion, one hundred eighty-nine million, seven hundred sixty-four thousand, seven hundred fifty".