1244027421278 has 8 divisors (see below), whose sum is σ = 1866046061160. Its totient is φ = 622012067560.

The previous prime is 1244027421277. The next prime is 1244027421283. The reversal of 1244027421278 is 8721247204421.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244027421277) 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, 657233 + ... + 1708803.

It is an arithmetic number, because the mean of its divisors is an integer number (233255757645).

Almost surely, 2^{1244027421278} is an apocalyptic number.

1244027421278 is a deficient number, since it is larger than the sum of its proper divisors (622018639882).

1244027421278 is a wasteful number, since it uses less digits than its factorization.

1244027421278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643082.

The product of its (nonzero) digits is 401408, while the sum is 44.

The spelling of 1244027421278 in words is "one trillion, two hundred forty-four billion, twenty-seven million, four hundred twenty-one thousand, two hundred seventy-eight".