2123481667 has 16 divisors (see below), whose sum is σ = 2286236160. Its totient is φ = 1965956832.

The previous prime is 2123481637. The next prime is 2123481673. The reversal of 2123481667 is 7661843212.

It is a cyclic number.

It is not a de Polignac number, because 2123481667 - 2¹⁹ = 2122957379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123481637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787173 + ... + 789865.

It is an arithmetic number, because the mean of its divisors is an integer number (142889760).

Almost surely, 2^2123481667 is an apocalyptic number.

2123481667 is a deficient number, since it is larger than the sum of its proper divisors (162754493).

2123481667 is a wasteful number, since it uses less digits than its factorization.

2123481667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642.

The product of its digits is 96768, while the sum is 40.

The square root of 2123481667 is about 46081.2507100231. The cubic root of 2123481667 is about 1285.3345214553.

The spelling of 2123481667 in words is "two billion, one hundred twenty-three million, four hundred eighty-one thousand, six hundred sixty-seven".