2159604423 has 36 divisors (see below), whose sum is σ = 3265666040. Its totient is φ = 1426172832.

The previous prime is 2159604407. The next prime is 2159604431. The reversal of 2159604423 is 3244069512.

It is a happy number.

2159604423 is a `hidden beast` number, since 2 + 1 + 5 + 9 + 604 + 42 + 3 = 666.

It is not a de Polignac number, because 2159604423 - 2⁴ = 2159604407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159604443) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9430473 + ... + 9430701.

Almost surely, 2^2159604423 is an apocalyptic number.

2159604423 is a deficient number, since it is larger than the sum of its proper divisors (1106061617).

2159604423 is an frugal number, since it uses more digits than its factorization.

2159604423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2159604423 is about 46471.5442286998. The cubic root of 2159604423 is about 1292.5818976448.

The spelling of 2159604423 in words is "two billion, one hundred fifty-nine million, six hundred four thousand, four hundred twenty-three".