12279442028798 has 8 divisors (see below), whose sum is σ = 21050472049392. Its totient is φ = 5262618012336.

The previous prime is 12279442028767. The next prime is 12279442028809. The reversal of 12279442028798 is 89782024497221.

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

It is a super-2 number, since 2×12279442028798² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438551501015 + ... + 438551501042.

It is an arithmetic number, because the mean of its divisors is an integer number (2631309006174).

Almost surely, 2^{12279442028798} is an apocalyptic number.

12279442028798 is a deficient number, since it is larger than the sum of its proper divisors (8771030020594).

12279442028798 is an equidigital number, since it uses as much as digits as its factorization.

12279442028798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877103002066.

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 12279442028798 in words is "twelve trillion, two hundred seventy-nine billion, four hundred forty-two million, twenty-eight thousand, seven hundred ninety-eight".