2609143357 has 4 divisors (see below), whose sum is σ = 2762622396. Its totient is φ = 2455664320.

The previous prime is 2609143351. The next prime is 2609143447. The reversal of 2609143357 is 7533419062.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1624815481 + 984327876 = 40309^2 + 31374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2609143357 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609143351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76739494 + ... + 76739527.

It is an arithmetic number, because the mean of its divisors is an integer number (690655599).

Almost surely, 2^2609143357 is an apocalyptic number.

It is an amenable number.

2609143357 is a deficient number, since it is larger than the sum of its proper divisors (153479039).

2609143357 is a wasteful number, since it uses less digits than its factorization.

2609143357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153479038.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 2609143357 is about 51079.7744415537. The cubic root of 2609143357 is about 1376.6788717136.

The spelling of 2609143357 in words is "two billion, six hundred nine million, one hundred forty-three thousand, three hundred fifty-seven".