12265409398 has 16 divisors (see below), whose sum is σ = 20248290576. Its totient is φ = 5525847040.

The previous prime is 12265409393. The next prime is 12265409399. The reversal of 12265409398 is 89390456221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12265409393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2464411 + ... + 2469382.

It is an arithmetic number, because the mean of its divisors is an integer number (1265518161).

Almost surely, 2^12265409398 is an apocalyptic number.

12265409398 is a deficient number, since it is larger than the sum of its proper divisors (7982881178).

12265409398 is a wasteful number, since it uses less digits than its factorization.

12265409398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933919.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 12265409398 in words is "twelve billion, two hundred sixty-five million, four hundred nine thousand, three hundred ninety-eight".