2609742841 has 4 divisors (see below), whose sum is σ = 2609924452. Its totient is φ = 2609561232.

The previous prime is 2609742833. The next prime is 2609742847. The reversal of 2609742841 is 1482479062.

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 996033600 + 1613709241 = 31560^2 + 40171^2 .

It is a cyclic number.

It is not a de Polignac number, because 2609742841 - 2³ = 2609742833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2609742847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67206 + ... + 98671.

It is an arithmetic number, because the mean of its divisors is an integer number (652481113).

Almost surely, 2^2609742841 is an apocalyptic number.

It is an amenable number.

2609742841 is a deficient number, since it is larger than the sum of its proper divisors (181611).

2609742841 is a wasteful number, since it uses less digits than its factorization.

2609742841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181610.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2609742841 is about 51085.6422197079. The cubic root of 2609742841 is about 1376.7843001556.

The spelling of 2609742841 in words is "two billion, six hundred nine million, seven hundred forty-two thousand, eight hundred forty-one".