2609743385 has 32 divisors (see below), whose sum is σ = 3457866240. Its totient is φ = 1883388672.

The previous prime is 2609743349. The next prime is 2609743399. The reversal of 2609743385 is 5833479062.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2609743385 - 2¹⁰ = 2609742361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157307 + ... + 173103.

It is an arithmetic number, because the mean of its divisors is an integer number (108058320).

Almost surely, 2^2609743385 is an apocalyptic number.

It is an amenable number.

2609743385 is a deficient number, since it is larger than the sum of its proper divisors (848122855).

2609743385 is a wasteful number, since it uses less digits than its factorization.

2609743385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15905.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 2609743385 is about 51085.6475440999. The cubic root of 2609743385 is about 1376.7843958190.

The spelling of 2609743385 in words is "two billion, six hundred nine million, seven hundred forty-three thousand, three hundred eighty-five".