2609442775 has 6 divisors (see below), whose sum is σ = 3235709072. Its totient is φ = 2087554200.

The previous prime is 2609442749. The next prime is 2609442809. The reversal of 2609442775 is 5772449062.

It is a happy number.

It is not a de Polignac number, because 2609442775 - 2¹¹ = 2609440727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52188831 + ... + 52188880.

Almost surely, 2^2609442775 is an apocalyptic number.

2609442775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2609442775 is a deficient number, since it is larger than the sum of its proper divisors (626266297).

2609442775 is a wasteful number, since it uses less digits than its factorization.

2609442775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104377721 (or 104377716 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 2609442775 is about 51082.7052435558. The cubic root of 2609442775 is about 1376.7315309727.

The spelling of 2609442775 in words is "two billion, six hundred nine million, four hundred forty-two thousand, seven hundred seventy-five".