12392778089245 has 8 divisors (see below), whose sum is σ = 15115126063320. Its totient is φ = 9751694233920.

The previous prime is 12392778089233. The next prime is 12392778089257. The reversal of 12392778089245 is 54298087729321.

It is an interprime number because it is at equal distance from previous prime (12392778089233) and next prime (12392778089257).

It can be written as a sum of positive squares in 4 ways, for example, as 88657444516 + 12304120644729 = 297754^2 + 3507723^2 .

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

It is not a de Polignac number, because 12392778089245 - 2¹⁷ = 12392777958173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20316029350 + ... + 20316029959.

It is an arithmetic number, because the mean of its divisors is an integer number (1889390757915).

Almost surely, 2^{12392778089245} is an apocalyptic number.

It is an amenable number.

12392778089245 is a deficient number, since it is larger than the sum of its proper divisors (2722347974075).

12392778089245 is an equidigital number, since it uses as much as digits as its factorization.

12392778089245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40632059375.

The product of its (nonzero) digits is 121927680, while the sum is 67.

The spelling of 12392778089245 in words is "twelve trillion, three hundred ninety-two billion, seven hundred seventy-eight million, eighty-nine thousand, two hundred forty-five".