12280356797 has 4 divisors (see below), whose sum is σ = 12287716380. Its totient is φ = 12272997216.

The previous prime is 12280356749. The next prime is 12280356839. The reversal of 12280356797 is 79765308221.

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 10110101401 + 2170255396 = 100549^2 + 46586^2 .

It is a cyclic number.

It is not a de Polignac number, because 12280356797 - 2¹² = 12280352701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280356727) 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, 3677288 + ... + 3680625.

It is an arithmetic number, because the mean of its divisors is an integer number (3071929095).

Almost surely, 2^12280356797 is an apocalyptic number.

It is an amenable number.

12280356797 is a deficient number, since it is larger than the sum of its proper divisors (7359583).

12280356797 is an equidigital number, since it uses as much as digits as its factorization.

12280356797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359582.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 12280356797 in words is "twelve billion, two hundred eighty million, three hundred fifty-six thousand, seven hundred ninety-seven".