2189635273379 has 4 divisors (see below), whose sum is σ = 2194861133640. Its totient is φ = 2184409413120.

The previous prime is 2189635273373. The next prime is 2189635273387. The reversal of 2189635273379 is 9733725369812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2189635273379 - 2⁸ = 2189635273123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2189635273373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2612929502 + ... + 2612930339.

It is an arithmetic number, because the mean of its divisors is an integer number (548715283410).

Almost surely, 2^{2189635273379} is an apocalyptic number.

2189635273379 is a deficient number, since it is larger than the sum of its proper divisors (5225860261).

2189635273379 is an equidigital number, since it uses as much as digits as its factorization.

2189635273379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225860260.

The product of its digits is 102876480, while the sum is 65.

The spelling of 2189635273379 in words is "two trillion, one hundred eighty-nine billion, six hundred thirty-five million, two hundred seventy-three thousand, three hundred seventy-nine".