12049809097 has 8 divisors (see below), whose sum is σ = 12091926600. Its totient is φ = 12007749504.

The previous prime is 12049809077. The next prime is 12049809113. The reversal of 12049809097 is 79090894021.

It can be written as a sum of positive squares in 4 ways, for example, as 7160976 + 12042648121 = 2676^2 + 109739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12049809097 - 2¹⁵ = 12049776329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12049809097.

It is not an unprimeable number, because it can be changed into a prime (12049809017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425463 + ... + 452899.

It is an arithmetic number, because the mean of its divisors is an integer number (1511490825).

Almost surely, 2^12049809097 is an apocalyptic number.

It is an amenable number.

12049809097 is a deficient number, since it is larger than the sum of its proper divisors (42117503).

12049809097 is a wasteful number, since it uses less digits than its factorization.

12049809097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28955.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 12049809097 in words is "twelve billion, forty-nine million, eight hundred nine thousand, ninety-seven".