2609649601 has 32 divisors (see below), whose sum is σ = 3021334400. Its totient is φ = 2233889280.

The previous prime is 2609649599. The next prime is 2609649607. The reversal of 2609649601 is 1069469062.

It is a happy number.

It is not a de Polignac number, because 2609649601 - 2¹ = 2609649599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2609649607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5710165 + ... + 5710621.

It is an arithmetic number, because the mean of its divisors is an integer number (94416700).

Almost surely, 2^2609649601 is an apocalyptic number.

It is an amenable number.

2609649601 is a deficient number, since it is larger than the sum of its proper divisors (411684799).

2609649601 is a wasteful number, since it uses less digits than its factorization.

2609649601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2609649601 is about 51084.7296263766. The cubic root of 2609649601 is about 1376.7679035341.

The spelling of 2609649601 in words is "two billion, six hundred nine million, six hundred forty-nine thousand, six hundred one".