2609069749 has 8 divisors (see below), whose sum is σ = 3065200992. Its totient is φ = 2189429040.

The previous prime is 2609069663. The next prime is 2609069761. The reversal of 2609069749 is 9479609062.

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

It is a cyclic number.

It is not a de Polignac number, because 2609069749 - 2¹⁹ = 2608545461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2609069696 and 2609069705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609069789) 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, 9122479 + ... + 9122764.

It is an arithmetic number, because the mean of its divisors is an integer number (383150124).

Almost surely, 2^2609069749 is an apocalyptic number.

It is an amenable number.

2609069749 is a deficient number, since it is larger than the sum of its proper divisors (456131243).

2609069749 is a wasteful number, since it uses less digits than its factorization.

2609069749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18245267.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 2609069749 is about 51079.0539164539. The cubic root of 2609069749 is about 1376.6659255065.

The spelling of 2609069749 in words is "two billion, six hundred nine million, sixty-nine thousand, seven hundred forty-nine".