2653173726349 has 4 divisors (see below), whose sum is σ = 2677514769820. Its totient is φ = 2628832682880.

The previous prime is 2653173726319. The next prime is 2653173726373. The reversal of 2653173726349 is 9436273713562.

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 1641755316100 + 1011418410249 = 1281310^2 + 1005693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2653173726349 - 2⁹ = 2653173725837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2653173726293 and 2653173726302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653173726319) 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, 12170521572 + ... + 12170521789.

It is an arithmetic number, because the mean of its divisors is an integer number (669378692455).

Almost surely, 2^{2653173726349} is an apocalyptic number.

It is an amenable number.

2653173726349 is a deficient number, since it is larger than the sum of its proper divisors (24341043471).

2653173726349 is a wasteful number, since it uses less digits than its factorization.

2653173726349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24341043470.

The product of its digits is 34292160, while the sum is 58.

The spelling of 2653173726349 in words is "two trillion, six hundred fifty-three billion, one hundred seventy-three million, seven hundred twenty-six thousand, three hundred forty-nine".