12654675049 has 27 divisors (see below), whose sum is σ = 13615673463. Its totient is φ = 11760468192.

The previous prime is 12654675043. The next prime is 12654675083. The reversal of 12654675049 is 94057645621.

The square root of 12654675049 is 112493.

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

It can be written as a sum of positive squares in only one way, i.e., 7183410025 + 5471265024 = 84755^2 + 73968^2 .

It is not a de Polignac number, because 12654675049 - 2⁵ = 12654675017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12654674993 and 12654675011.

It is not an unprimeable number, because it can be changed into a prime (12654675043) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 173351677 + ... + 173351749.

Almost surely, 2^12654675049 is an apocalyptic number.

12654675049 is the 112493-rd square number.

12654675049 is the 56247-th centered octagonal number.

It is an amenable number.

12654675049 is a deficient number, since it is larger than the sum of its proper divisors (960998414).

12654675049 is an frugal number, since it uses more digits than its factorization.

12654675049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

Multiplying 12654675049 by its sum of digits (49), we get a square (620079077401 = 787451²).

The spelling of 12654675049 in words is "twelve billion, six hundred fifty-four million, six hundred seventy-five thousand, forty-nine".