2495145637609 has 9 divisors (see below), whose sum is σ = 2633412528567. Its totient is φ = 2363793750144.

The previous prime is 2495145637603. The next prime is 2495145637613. The reversal of 2495145637609 is 9067365415942.

It is a happy number.

The square root of 2495145637609 is 1579603.

It is a perfect power (a square), and thus also a powerful number.

2495145637609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37374555625 + 2457771081984 = 193325^2 + 1567728^2 .

It is not a de Polignac number, because 2495145637609 - 2²⁹ = 2494608766697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2495145637603) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29970889 + ... + 30054025.

It is an arithmetic number, because the mean of its divisors is an integer number (292601392063).

Almost surely, 2^{2495145637609} is an apocalyptic number.

2495145637609 is the 1579603-rd square number.

2495145637609 is the 789802-nd centered octagonal number.

It is an amenable number.

2495145637609 is a deficient number, since it is larger than the sum of its proper divisors (138266890958).

2495145637609 is an frugal number, since it uses more digits than its factorization.

2495145637609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166312 (or 83156 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 61.

The spelling of 2495145637609 in words is "two trillion, four hundred ninety-five billion, one hundred forty-five million, six hundred thirty-seven thousand, six hundred nine".