12174656078399 has 16 divisors (see below), whose sum is σ = 12373514899200. Its totient is φ = 11976676595136.

The previous prime is 12174656078309. The next prime is 12174656078437. The reversal of 12174656078399 is 99387065647121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12174656078399 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 (12174656078309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152986982 + ... + 153066540.

It is an arithmetic number, because the mean of its divisors is an integer number (773344681200).

It is a 1-persistent number, because it is pandigital, but 2⋅12174656078399 = 24349312156798 is not.

Almost surely, 2^{12174656078399} is an apocalyptic number.

12174656078399 is a deficient number, since it is larger than the sum of its proper divisors (198858820801).

12174656078399 is an equidigital number, since it uses as much as digits as its factorization.

12174656078399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85054.

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 12174656078399 in words is "twelve trillion, one hundred seventy-four billion, six hundred fifty-six million, seventy-eight thousand, three hundred ninety-nine".