2123481669 has 8 divisors (see below), whose sum is σ = 2835594912. Its totient is φ = 1413511440.

The previous prime is 2123481637. The next prime is 2123481673. The reversal of 2123481669 is 9661843212.

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

It is not a de Polignac number, because 2123481669 - 2⁵ = 2123481637 is a prime.

It is a super-2 number, since 2×2123481669² = 9018348797158051122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2123481669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123486669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533439 + ... + 537404.

It is an arithmetic number, because the mean of its divisors is an integer number (354449364).

Almost surely, 2^2123481669 is an apocalyptic number.

It is an amenable number.

2123481669 is a deficient number, since it is larger than the sum of its proper divisors (712113243).

2123481669 is a wasteful number, since it uses less digits than its factorization.

2123481669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071507.

The product of its digits is 124416, while the sum is 42.

The square root of 2123481669 is about 46081.2507317239. The cubic root of 2123481669 is about 1285.3345218589.

The spelling of 2123481669 in words is "two billion, one hundred twenty-three million, four hundred eighty-one thousand, six hundred sixty-nine".