2609579523 has 4 divisors (see below), whose sum is σ = 3479439368. Its totient is φ = 1739719680.

The previous prime is 2609579519. The next prime is 2609579537. The reversal of 2609579523 is 3259759062.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2609579523 - 2² = 2609579519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2609579923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434929918 + ... + 434929923.

It is an arithmetic number, because the mean of its divisors is an integer number (869859842).

Almost surely, 2^2609579523 is an apocalyptic number.

2609579523 is a deficient number, since it is larger than the sum of its proper divisors (869859845).

2609579523 is an equidigital number, since it uses as much as digits as its factorization.

2609579523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869859844.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The square root of 2609579523 is about 51084.0437220861. The cubic root of 2609579523 is about 1376.7555797845.

It can be divided in two parts, 260957 and 9523, that added together give a triangular number (270480 = T₇₃₅).

The spelling of 2609579523 in words is "two billion, six hundred nine million, five hundred seventy-nine thousand, five hundred twenty-three".